Home / 12,508.40-17,260.88-6,919.04

Finding the Fourth Proportional to 12,508.40, 17,260.88 and 6,919.04

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Solution

The fourth proportional to 12,508.40, 17,260.88 and 6,919.04 is: 9,547.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,508.40 : 17,260.88 = 6,919.04 : x
  2. Step 2: Convert to fraction form
    12,508.40/17,260.88 = 6,919.04/x
  3. Step 3: Cross multiply
    12,508.40x = 17,260.88 × 6,919.04
  4. Step 4: Simplify right side
    12,508.40x = 119,428,719.16
  5. Step 5: Solve for x
    x = 119,428,719.16/12,508.40
  6. Step 6: Final answer
    x = 9,547.88

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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.