Home / 15,400.28-21,252.56-8,326.84

Finding the Fourth Proportional to 15,400.28, 21,252.56 and 8,326.84

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Solution

The fourth proportional to 15,400.28, 21,252.56 and 8,326.84 is: 11,491.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,400.28 : 21,252.56 = 8,326.84 : x
  2. Step 2: Convert to fraction form
    15,400.28/21,252.56 = 8,326.84/x
  3. Step 3: Cross multiply
    15,400.28x = 21,252.56 × 8,326.84
  4. Step 4: Simplify right side
    15,400.28x = 176,966,666.71
  5. Step 5: Solve for x
    x = 176,966,666.71/15,400.28
  6. Step 6: Final answer
    x = 11,491.13

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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.