Home / 13,244.75-18,280.19-7,655.75

Finding the Fourth Proportional to 13,244.75, 18,280.19 and 7,655.75

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Solution

The fourth proportional to 13,244.75, 18,280.19 and 7,655.75 is: 10,566.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,244.75 : 18,280.19 = 7,655.75 : x
  2. Step 2: Convert to fraction form
    13,244.75/18,280.19 = 7,655.75/x
  3. Step 3: Cross multiply
    13,244.75x = 18,280.19 × 7,655.75
  4. Step 4: Simplify right side
    13,244.75x = 139,948,526.31
  5. Step 5: Solve for x
    x = 139,948,526.31/13,244.75
  6. Step 6: Final answer
    x = 10,566.34

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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.