Home / 15,834.32-21,853.52-9,121.04

Finding the Fourth Proportional to 15,834.32, 21,853.52 and 9,121.04

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Solution

The fourth proportional to 15,834.32, 21,853.52 and 9,121.04 is: 12,588.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,834.32 : 21,853.52 = 9,121.04 : x
  2. Step 2: Convert to fraction form
    15,834.32/21,853.52 = 9,121.04/x
  3. Step 3: Cross multiply
    15,834.32x = 21,853.52 × 9,121.04
  4. Step 4: Simplify right side
    15,834.32x = 199,326,830.06
  5. Step 5: Solve for x
    x = 199,326,830.06/15,834.32
  6. Step 6: Final answer
    x = 12,588.28

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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.