Home / 15,313.25-21,132.11-8,598.72

Finding the Fourth Proportional to 15,313.25, 21,132.11 and 8,598.72

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Solution

The fourth proportional to 15,313.25, 21,132.11 and 8,598.72 is: 11,866.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,313.25 : 21,132.11 = 8,598.72 : x
  2. Step 2: Convert to fraction form
    15,313.25/21,132.11 = 8,598.72/x
  3. Step 3: Cross multiply
    15,313.25x = 21,132.11 × 8,598.72
  4. Step 4: Simplify right side
    15,313.25x = 181,709,053.91
  5. Step 5: Solve for x
    x = 181,709,053.91/15,313.25
  6. Step 6: Final answer
    x = 11,866.14

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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.