Home / 9,929.15-13,702.24-5,391.83

Finding the Fourth Proportional to 9,929.15, 13,702.24 and 5,391.83

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Solution

The fourth proportional to 9,929.15, 13,702.24 and 5,391.83 is: 7,440.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,929.15 : 13,702.24 = 5,391.83 : x
  2. Step 2: Convert to fraction form
    9,929.15/13,702.24 = 5,391.83/x
  3. Step 3: Cross multiply
    9,929.15x = 13,702.24 × 5,391.83
  4. Step 4: Simplify right side
    9,929.15x = 73,880,169.48
  5. Step 5: Solve for x
    x = 73,880,169.48/9,929.15
  6. Step 6: Final answer
    x = 7,440.74

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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.