Home / 9,677.16-13,353.39-5,428.23

Finding the Fourth Proportional to 9,677.16, 13,353.39 and 5,428.23

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Solution

The fourth proportional to 9,677.16, 13,353.39 and 5,428.23 is: 7,490.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,677.16 : 13,353.39 = 5,428.23 : x
  2. Step 2: Convert to fraction form
    9,677.16/13,353.39 = 5,428.23/x
  3. Step 3: Cross multiply
    9,677.16x = 13,353.39 × 5,428.23
  4. Step 4: Simplify right side
    9,677.16x = 72,485,272.20
  5. Step 5: Solve for x
    x = 72,485,272.20/9,677.16
  6. Step 6: Final answer
    x = 7,490.35

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Half scale
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Double scale
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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.