Home / 12,550.76-17,319.37-6,885.40

Finding the Fourth Proportional to 12,550.76, 17,319.37 and 6,885.40

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Solution

The fourth proportional to 12,550.76, 17,319.37 and 6,885.40 is: 9,501.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,550.76 : 17,319.37 = 6,885.40 : x
  2. Step 2: Convert to fraction form
    12,550.76/17,319.37 = 6,885.40/x
  3. Step 3: Cross multiply
    12,550.76x = 17,319.37 × 6,885.40
  4. Step 4: Simplify right side
    12,550.76x = 119,250,790.20
  5. Step 5: Solve for x
    x = 119,250,790.20/12,550.76
  6. Step 6: Final answer
    x = 9,501.48

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Half scale
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Double scale
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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.