Home / 9,527.74-13,147.98-5,278.63

Finding the Fourth Proportional to 9,527.74, 13,147.98 and 5,278.63

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Solution

The fourth proportional to 9,527.74, 13,147.98 and 5,278.63 is: 7,284.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,527.74 : 13,147.98 = 5,278.63 : x
  2. Step 2: Convert to fraction form
    9,527.74/13,147.98 = 5,278.63/x
  3. Step 3: Cross multiply
    9,527.74x = 13,147.98 × 5,278.63
  4. Step 4: Simplify right side
    9,527.74x = 69,403,321.67
  5. Step 5: Solve for x
    x = 69,403,321.67/9,527.74
  6. Step 6: Final answer
    x = 7,284.34

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Half scale
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Double scale
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Similar ratio
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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.