Home / 15,346.56-21,177.48-9,057.72

Finding the Fourth Proportional to 15,346.56, 21,177.48 and 9,057.72

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Solution

The fourth proportional to 15,346.56, 21,177.48 and 9,057.72 is: 12,499.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,346.56 : 21,177.48 = 9,057.72 : x
  2. Step 2: Convert to fraction form
    15,346.56/21,177.48 = 9,057.72/x
  3. Step 3: Cross multiply
    15,346.56x = 21,177.48 × 9,057.72
  4. Step 4: Simplify right side
    15,346.56x = 191,819,684.15
  5. Step 5: Solve for x
    x = 191,819,684.15/15,346.56
  6. Step 6: Final answer
    x = 12,499.20

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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.