Home / 15,585.30-21,508.20-9,617.22

Finding the Fourth Proportional to 15,585.30, 21,508.20 and 9,617.22

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Solution

The fourth proportional to 15,585.30, 21,508.20 and 9,617.22 is: 13,272.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,585.30 : 21,508.20 = 9,617.22 : x
  2. Step 2: Convert to fraction form
    15,585.30/21,508.20 = 9,617.22/x
  3. Step 3: Cross multiply
    15,585.30x = 21,508.20 × 9,617.22
  4. Step 4: Simplify right side
    15,585.30x = 206,849,091.20
  5. Step 5: Solve for x
    x = 206,849,091.20/15,585.30
  6. Step 6: Final answer
    x = 13,272.06

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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.