Home / 12,587.32-17,368.57-7,281.12

Finding the Fourth Proportional to 12,587.32, 17,368.57 and 7,281.12

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Solution

The fourth proportional to 12,587.32, 17,368.57 and 7,281.12 is: 10,046.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,587.32 : 17,368.57 = 7,281.12 : x
  2. Step 2: Convert to fraction form
    12,587.32/17,368.57 = 7,281.12/x
  3. Step 3: Cross multiply
    12,587.32x = 17,368.57 × 7,281.12
  4. Step 4: Simplify right side
    12,587.32x = 126,462,642.40
  5. Step 5: Solve for x
    x = 126,462,642.40/12,587.32
  6. Step 6: Final answer
    x = 10,046.83

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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.