Home / 9,261.53-12,780.01-5,281.59

Finding the Fourth Proportional to 9,261.53, 12,780.01 and 5,281.59

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Solution

The fourth proportional to 9,261.53, 12,780.01 and 5,281.59 is: 7,288.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,261.53 : 12,780.01 = 5,281.59 : x
  2. Step 2: Convert to fraction form
    9,261.53/12,780.01 = 5,281.59/x
  3. Step 3: Cross multiply
    9,261.53x = 12,780.01 × 5,281.59
  4. Step 4: Simplify right side
    9,261.53x = 67,498,773.02
  5. Step 5: Solve for x
    x = 67,498,773.02/9,261.53
  6. Step 6: Final answer
    x = 7,288.08

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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.