Home / 15,373.40-21,217.55-9,404.10

Finding the Fourth Proportional to 15,373.40, 21,217.55 and 9,404.10

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Solution

The fourth proportional to 15,373.40, 21,217.55 and 9,404.10 is: 12,979.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,373.40 : 21,217.55 = 9,404.10 : x
  2. Step 2: Convert to fraction form
    15,373.40/21,217.55 = 9,404.10/x
  3. Step 3: Cross multiply
    15,373.40x = 21,217.55 × 9,404.10
  4. Step 4: Simplify right side
    15,373.40x = 199,531,914.93
  5. Step 5: Solve for x
    x = 199,531,914.93/15,373.40
  6. Step 6: Final answer
    x = 12,979.04

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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.