Home / 6,748.71-9,312.77-5,156.43

Finding the Fourth Proportional to 6,748.71, 9,312.77 and 5,156.43

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Solution

The fourth proportional to 6,748.71, 9,312.77 and 5,156.43 is: 7,115.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,748.71 : 9,312.77 = 5,156.43 : x
  2. Step 2: Convert to fraction form
    6,748.71/9,312.77 = 5,156.43/x
  3. Step 3: Cross multiply
    6,748.71x = 9,312.77 × 5,156.43
  4. Step 4: Simplify right side
    6,748.71x = 48,020,620.83
  5. Step 5: Solve for x
    x = 48,020,620.83/6,748.71
  6. Step 6: Final answer
    x = 7,115.53

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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.