Home / 9,421.28-13,001.58-5,229.80

Finding the Fourth Proportional to 9,421.28, 13,001.58 and 5,229.80

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Solution

The fourth proportional to 9,421.28, 13,001.58 and 5,229.80 is: 7,217.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,421.28 : 13,001.58 = 5,229.80 : x
  2. Step 2: Convert to fraction form
    9,421.28/13,001.58 = 5,229.80/x
  3. Step 3: Cross multiply
    9,421.28x = 13,001.58 × 5,229.80
  4. Step 4: Simplify right side
    9,421.28x = 67,995,663.08
  5. Step 5: Solve for x
    x = 67,995,663.08/9,421.28
  6. Step 6: Final answer
    x = 7,217.24

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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.