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Finding the Fourth Proportional to 13,045.60, 18,002.76 and 7,077.10

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Solution

The fourth proportional to 13,045.60, 18,002.76 and 7,077.10 is: 9,766.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,045.60 : 18,002.76 = 7,077.10 : x
  2. Step 2: Convert to fraction form
    13,045.60/18,002.76 = 7,077.10/x
  3. Step 3: Cross multiply
    13,045.60x = 18,002.76 × 7,077.10
  4. Step 4: Simplify right side
    13,045.60x = 127,407,332.80
  5. Step 5: Solve for x
    x = 127,407,332.80/13,045.60
  6. Step 6: Final answer
    x = 9,766.31

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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.