Home / 8,948.46-12,349.41-5,172.30

Finding the Fourth Proportional to 8,948.46, 12,349.41 and 5,172.30

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Solution

The fourth proportional to 8,948.46, 12,349.41 and 5,172.30 is: 7,138.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,948.46 : 12,349.41 = 5,172.30 : x
  2. Step 2: Convert to fraction form
    8,948.46/12,349.41 = 5,172.30/x
  3. Step 3: Cross multiply
    8,948.46x = 12,349.41 × 5,172.30
  4. Step 4: Simplify right side
    8,948.46x = 63,874,853.34
  5. Step 5: Solve for x
    x = 63,874,853.34/8,948.46
  6. Step 6: Final answer
    x = 7,138.08

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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.