Home / 9,261.77-12,782.45-5,281.97

Finding the Fourth Proportional to 9,261.77, 12,782.45 and 5,281.97

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Solution

The fourth proportional to 9,261.77, 12,782.45 and 5,281.97 is: 7,289.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,261.77 : 12,782.45 = 5,281.97 : x
  2. Step 2: Convert to fraction form
    9,261.77/12,782.45 = 5,281.97/x
  3. Step 3: Cross multiply
    9,261.77x = 12,782.45 × 5,281.97
  4. Step 4: Simplify right side
    9,261.77x = 67,516,466.72
  5. Step 5: Solve for x
    x = 67,516,466.72/9,261.77
  6. Step 6: Final answer
    x = 7,289.81

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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.