Home / 9,639.40-13,301.19-5,331.91

Finding the Fourth Proportional to 9,639.40, 13,301.19 and 5,331.91

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Solution

The fourth proportional to 9,639.40, 13,301.19 and 5,331.91 is: 7,357.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,639.40 : 13,301.19 = 5,331.91 : x
  2. Step 2: Convert to fraction form
    9,639.40/13,301.19 = 5,331.91/x
  3. Step 3: Cross multiply
    9,639.40x = 13,301.19 × 5,331.91
  4. Step 4: Simplify right side
    9,639.40x = 70,920,681.47
  5. Step 5: Solve for x
    x = 70,920,681.47/9,639.40
  6. Step 6: Final answer
    x = 7,357.38

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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.