Home / 15,460.04-21,334.92-8,387.12

Finding the Fourth Proportional to 15,460.04, 21,334.92 and 8,387.12

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Solution

The fourth proportional to 15,460.04, 21,334.92 and 8,387.12 is: 11,574.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,460.04 : 21,334.92 = 8,387.12 : x
  2. Step 2: Convert to fraction form
    15,460.04/21,334.92 = 8,387.12/x
  3. Step 3: Cross multiply
    15,460.04x = 21,334.92 × 8,387.12
  4. Step 4: Simplify right side
    15,460.04x = 178,938,534.23
  5. Step 5: Solve for x
    x = 178,938,534.23/15,460.04
  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.