Home / 9,015.99-12,438.74-5,657.58

Finding the Fourth Proportional to 9,015.99, 12,438.74 and 5,657.58

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Solution

The fourth proportional to 9,015.99, 12,438.74 and 5,657.58 is: 7,805.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,015.99 : 12,438.74 = 5,657.58 : x
  2. Step 2: Convert to fraction form
    9,015.99/12,438.74 = 5,657.58/x
  3. Step 3: Cross multiply
    9,015.99x = 12,438.74 × 5,657.58
  4. Step 4: Simplify right side
    9,015.99x = 70,373,138.36
  5. Step 5: Solve for x
    x = 70,373,138.36/9,015.99
  6. Step 6: Final answer
    x = 7,805.37

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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.