Home / 15,292.80-21,098.88-9,707.04

Finding the Fourth Proportional to 15,292.80, 21,098.88 and 9,707.04

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Solution

The fourth proportional to 15,292.80, 21,098.88 and 9,707.04 is: 13,392.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,292.80 : 21,098.88 = 9,707.04 : x
  2. Step 2: Convert to fraction form
    15,292.80/21,098.88 = 9,707.04/x
  3. Step 3: Cross multiply
    15,292.80x = 21,098.88 × 9,707.04
  4. Step 4: Simplify right side
    15,292.80x = 204,807,672.12
  5. Step 5: Solve for x
    x = 204,807,672.12/15,292.80
  6. Step 6: Final answer
    x = 13,392.42

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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.