Home / 9,702.81-14,552.73-3,128.13

Finding the Fourth Proportional to 9,702.81, 14,552.73 and 3,128.13

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Solution

The fourth proportional to 9,702.81, 14,552.73 and 3,128.13 is: 4,691.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,702.81 : 14,552.73 = 3,128.13 : x
  2. Step 2: Convert to fraction form
    9,702.81/14,552.73 = 3,128.13/x
  3. Step 3: Cross multiply
    9,702.81x = 14,552.73 × 3,128.13
  4. Step 4: Simplify right side
    9,702.81x = 45,522,831.29
  5. Step 5: Solve for x
    x = 45,522,831.29/9,702.81
  6. Step 6: Final answer
    x = 4,691.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.