Home / 9,370.79-12,864.02-8,042.19

Finding the Fourth Proportional to 9,370.79, 12,864.02 and 8,042.19

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Solution

The fourth proportional to 9,370.79, 12,864.02 and 8,042.19 is: 11,040.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,370.79 : 12,864.02 = 8,042.19 : x
  2. Step 2: Convert to fraction form
    9,370.79/12,864.02 = 8,042.19/x
  3. Step 3: Cross multiply
    9,370.79x = 12,864.02 × 8,042.19
  4. Step 4: Simplify right side
    9,370.79x = 103,454,804.55
  5. Step 5: Solve for x
    x = 103,454,804.55/9,370.79
  6. Step 6: Final answer
    x = 11,040.14

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.