Home / 12,547.13-17,315.19-6,881.72

Finding the Fourth Proportional to 12,547.13, 17,315.19 and 6,881.72

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Solution

The fourth proportional to 12,547.13, 17,315.19 and 6,881.72 is: 9,496.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,547.13 : 17,315.19 = 6,881.72 : x
  2. Step 2: Convert to fraction form
    12,547.13/17,315.19 = 6,881.72/x
  3. Step 3: Cross multiply
    12,547.13x = 17,315.19 × 6,881.72
  4. Step 4: Simplify right side
    12,547.13x = 119,158,202.75
  5. Step 5: Solve for x
    x = 119,158,202.75/12,547.13
  6. Step 6: Final answer
    x = 9,496.85

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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.