Home / 15,292.68-21,113.10-9,996.36

Finding the Fourth Proportional to 15,292.68, 21,113.10 and 9,996.36

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Solution

The fourth proportional to 15,292.68, 21,113.10 and 9,996.36 is: 13,800.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,292.68 : 21,113.10 = 9,996.36 : x
  2. Step 2: Convert to fraction form
    15,292.68/21,113.10 = 9,996.36/x
  3. Step 3: Cross multiply
    15,292.68x = 21,113.10 × 9,996.36
  4. Step 4: Simplify right side
    15,292.68x = 211,054,148.32
  5. Step 5: Solve for x
    x = 211,054,148.32/15,292.68
  6. Step 6: Final answer
    x = 13,800.99

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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.