Home / 15,708.30-21,675.62-9,335.16

Finding the Fourth Proportional to 15,708.30, 21,675.62 and 9,335.16

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Solution

The fourth proportional to 15,708.30, 21,675.62 and 9,335.16 is: 12,881.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,708.30 : 21,675.62 = 9,335.16 : x
  2. Step 2: Convert to fraction form
    15,708.30/21,675.62 = 9,335.16/x
  3. Step 3: Cross multiply
    15,708.30x = 21,675.62 × 9,335.16
  4. Step 4: Simplify right side
    15,708.30x = 202,345,380.80
  5. Step 5: Solve for x
    x = 202,345,380.80/15,708.30
  6. Step 6: Final answer
    x = 12,881.43

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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.