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Finding the Fourth Proportional to 12,508.80, 17,260.48 and 6,919.04

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Solution

The fourth proportional to 12,508.80, 17,260.48 and 6,919.04 is: 9,547.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,508.80 : 17,260.48 = 6,919.04 : x
  2. Step 2: Convert to fraction form
    12,508.80/17,260.48 = 6,919.04/x
  3. Step 3: Cross multiply
    12,508.80x = 17,260.48 × 6,919.04
  4. Step 4: Simplify right side
    12,508.80x = 119,425,951.54
  5. Step 5: Solve for x
    x = 119,425,951.54/12,508.80
  6. Step 6: Final answer
    x = 9,547.35

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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.