Home / 15,652.13-21,599.96-8,578.40

Finding the Fourth Proportional to 15,652.13, 21,599.96 and 8,578.40

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Solution

The fourth proportional to 15,652.13, 21,599.96 and 8,578.40 is: 11,838.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,652.13 : 21,599.96 = 8,578.40 : x
  2. Step 2: Convert to fraction form
    15,652.13/21,599.96 = 8,578.40/x
  3. Step 3: Cross multiply
    15,652.13x = 21,599.96 × 8,578.40
  4. Step 4: Simplify right side
    15,652.13x = 185,292,945.97
  5. Step 5: Solve for x
    x = 185,292,945.97/15,652.13
  6. Step 6: Final answer
    x = 11,838.20

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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.