Home / 15,424.24-23,142.56-9,187.20

Finding the Fourth Proportional to 15,424.24, 23,142.56 and 9,187.20

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Solution

The fourth proportional to 15,424.24, 23,142.56 and 9,187.20 is: 13,784.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,424.24 : 23,142.56 = 9,187.20 : x
  2. Step 2: Convert to fraction form
    15,424.24/23,142.56 = 9,187.20/x
  3. Step 3: Cross multiply
    15,424.24x = 23,142.56 × 9,187.20
  4. Step 4: Simplify right side
    15,424.24x = 212,615,327.23
  5. Step 5: Solve for x
    x = 212,615,327.23/15,424.24
  6. Step 6: Final answer
    x = 13,784.49

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.