Home / 15,007.57-20,710.86-8,293.62

Finding the Fourth Proportional to 15,007.57, 20,710.86 and 8,293.62

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Solution

The fourth proportional to 15,007.57, 20,710.86 and 8,293.62 is: 11,445.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,007.57 : 20,710.86 = 8,293.62 : x
  2. Step 2: Convert to fraction form
    15,007.57/20,710.86 = 8,293.62/x
  3. Step 3: Cross multiply
    15,007.57x = 20,710.86 × 8,293.62
  4. Step 4: Simplify right side
    15,007.57x = 171,768,075.57
  5. Step 5: Solve for x
    x = 171,768,075.57/15,007.57
  6. Step 6: Final answer
    x = 11,445.43

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.