Home / 12,488.40-17,233.16-6,899.28

Finding the Fourth Proportional to 12,488.40, 17,233.16 and 6,899.28

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Solution

The fourth proportional to 12,488.40, 17,233.16 and 6,899.28 is: 9,520.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,488.40 : 17,233.16 = 6,899.28 : x
  2. Step 2: Convert to fraction form
    12,488.40/17,233.16 = 6,899.28/x
  3. Step 3: Cross multiply
    12,488.40x = 17,233.16 × 6,899.28
  4. Step 4: Simplify right side
    12,488.40x = 118,896,396.12
  5. Step 5: Solve for x
    x = 118,896,396.12/12,488.40
  6. Step 6: Final answer
    x = 9,520.55

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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.