Home / 8,948.57-12,345.47-5,171.03

Finding the Fourth Proportional to 8,948.57, 12,345.47 and 5,171.03

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Solution

The fourth proportional to 8,948.57, 12,345.47 and 5,171.03 is: 7,133.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,948.57 : 12,345.47 = 5,171.03 : x
  2. Step 2: Convert to fraction form
    8,948.57/12,345.47 = 5,171.03/x
  3. Step 3: Cross multiply
    8,948.57x = 12,345.47 × 5,171.03
  4. Step 4: Simplify right side
    8,948.57x = 63,838,839.53
  5. Step 5: Solve for x
    x = 63,838,839.53/8,948.57
  6. Step 6: Final answer
    x = 7,133.98

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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.