Home / 9,261.33-12,780.50-5,282.51

Finding the Fourth Proportional to 9,261.33, 12,780.50 and 5,282.51

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Solution

The fourth proportional to 9,261.33, 12,780.50 and 5,282.51 is: 7,289.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,261.33 : 12,780.50 = 5,282.51 : x
  2. Step 2: Convert to fraction form
    9,261.33/12,780.50 = 5,282.51/x
  3. Step 3: Cross multiply
    9,261.33x = 12,780.50 × 5,282.51
  4. Step 4: Simplify right side
    9,261.33x = 67,513,071.13
  5. Step 5: Solve for x
    x = 67,513,071.13/9,261.33
  6. Step 6: Final answer
    x = 7,289.78

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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.