Home / 10,179.20-14,047.84-5,702.70

Finding the Fourth Proportional to 10,179.20, 14,047.84 and 5,702.70

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Solution

The fourth proportional to 10,179.20, 14,047.84 and 5,702.70 is: 7,870.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,179.20 : 14,047.84 = 5,702.70 : x
  2. Step 2: Convert to fraction form
    10,179.20/14,047.84 = 5,702.70/x
  3. Step 3: Cross multiply
    10,179.20x = 14,047.84 × 5,702.70
  4. Step 4: Simplify right side
    10,179.20x = 80,110,617.17
  5. Step 5: Solve for x
    x = 80,110,617.17/10,179.20
  6. Step 6: Final answer
    x = 7,870.03

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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.