Home / 8,898.36-12,280.14-5,171.64

Finding the Fourth Proportional to 8,898.36, 12,280.14 and 5,171.64

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Solution

The fourth proportional to 8,898.36, 12,280.14 and 5,171.64 is: 7,137.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,898.36 : 12,280.14 = 5,171.64 : x
  2. Step 2: Convert to fraction form
    8,898.36/12,280.14 = 5,171.64/x
  3. Step 3: Cross multiply
    8,898.36x = 12,280.14 × 5,171.64
  4. Step 4: Simplify right side
    8,898.36x = 63,508,463.23
  5. Step 5: Solve for x
    x = 63,508,463.23/8,898.36
  6. Step 6: Final answer
    x = 7,137.10

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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.