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Finding the Fourth Proportional to 13,045.68, 18,003.00 and 7,077.34

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Solution

The fourth proportional to 13,045.68, 18,003.00 and 7,077.34 is: 9,766.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,045.68 : 18,003.00 = 7,077.34 : x
  2. Step 2: Convert to fraction form
    13,045.68/18,003.00 = 7,077.34/x
  3. Step 3: Cross multiply
    13,045.68x = 18,003.00 × 7,077.34
  4. Step 4: Simplify right side
    13,045.68x = 127,413,275.35
  5. Step 5: Solve for x
    x = 127,413,275.35/13,045.68
  6. Step 6: Final answer
    x = 9,766.70

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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.