Home / 15,324.64-21,148.56-8,610.40

Finding the Fourth Proportional to 15,324.64, 21,148.56 and 8,610.40

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Solution

The fourth proportional to 15,324.64, 21,148.56 and 8,610.40 is: 11,882.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,324.64 : 21,148.56 = 8,610.40 : x
  2. Step 2: Convert to fraction form
    15,324.64/21,148.56 = 8,610.40/x
  3. Step 3: Cross multiply
    15,324.64x = 21,148.56 × 8,610.40
  4. Step 4: Simplify right side
    15,324.64x = 182,097,561.02
  5. Step 5: Solve for x
    x = 182,097,561.02/15,324.64
  6. Step 6: Final answer
    x = 11,882.66

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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.