Home / 15,460.69-21,335.76-8,387.14

Finding the Fourth Proportional to 15,460.69, 21,335.76 and 8,387.14

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Solution

The fourth proportional to 15,460.69, 21,335.76 and 8,387.14 is: 11,574.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,460.69 : 21,335.76 = 8,387.14 : x
  2. Step 2: Convert to fraction form
    15,460.69/21,335.76 = 8,387.14/x
  3. Step 3: Cross multiply
    15,460.69x = 21,335.76 × 8,387.14
  4. Step 4: Simplify right side
    15,460.69x = 178,945,952.79
  5. Step 5: Solve for x
    x = 178,945,952.79/15,460.69
  6. Step 6: Final answer
    x = 11,574.26

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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.