Home / 15,580.24-21,501.24-8,507.20

Finding the Fourth Proportional to 15,580.24, 21,501.24 and 8,507.20

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Solution

The fourth proportional to 15,580.24, 21,501.24 and 8,507.20 is: 11,740.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,580.24 : 21,501.24 = 8,507.20 : x
  2. Step 2: Convert to fraction form
    15,580.24/21,501.24 = 8,507.20/x
  3. Step 3: Cross multiply
    15,580.24x = 21,501.24 × 8,507.20
  4. Step 4: Simplify right side
    15,580.24x = 182,915,348.93
  5. Step 5: Solve for x
    x = 182,915,348.93/15,580.24
  6. Step 6: Final answer
    x = 11,740.21

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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.