Home / 15,552.38-21,461.64-8,746.20

Finding the Fourth Proportional to 15,552.38, 21,461.64 and 8,746.20

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Solution

The fourth proportional to 15,552.38, 21,461.64 and 8,746.20 is: 12,069.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,552.38 : 21,461.64 = 8,746.20 : x
  2. Step 2: Convert to fraction form
    15,552.38/21,461.64 = 8,746.20/x
  3. Step 3: Cross multiply
    15,552.38x = 21,461.64 × 8,746.20
  4. Step 4: Simplify right side
    15,552.38x = 187,707,887.18
  5. Step 5: Solve for x
    x = 187,707,887.18/15,552.38
  6. Step 6: Final answer
    x = 12,069.40

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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.