Home / 9,261.08-12,780.42-5,282.56

Finding the Fourth Proportional to 9,261.08, 12,780.42 and 5,282.56

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Solution

The fourth proportional to 9,261.08, 12,780.42 and 5,282.56 is: 7,290.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,261.08 : 12,780.42 = 5,282.56 : x
  2. Step 2: Convert to fraction form
    9,261.08/12,780.42 = 5,282.56/x
  3. Step 3: Cross multiply
    9,261.08x = 12,780.42 × 5,282.56
  4. Step 4: Simplify right side
    9,261.08x = 67,513,331.64
  5. Step 5: Solve for x
    x = 67,513,331.64/9,261.08
  6. Step 6: Final answer
    x = 7,290.01

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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.