Home / 9,266.95-12,789.31-5,288.66

Finding the Fourth Proportional to 9,266.95, 12,789.31 and 5,288.66

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Solution

The fourth proportional to 9,266.95, 12,789.31 and 5,288.66 is: 7,298.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,266.95 : 12,789.31 = 5,288.66 : x
  2. Step 2: Convert to fraction form
    9,266.95/12,789.31 = 5,288.66/x
  3. Step 3: Cross multiply
    9,266.95x = 12,789.31 × 5,288.66
  4. Step 4: Simplify right side
    9,266.95x = 67,638,283.02
  5. Step 5: Solve for x
    x = 67,638,283.02/9,266.95
  6. Step 6: Final answer
    x = 7,298.87

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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.