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Finding the Fourth Proportional to 7,539.80, 10,400.10 and 6,051.20

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Solution

The fourth proportional to 7,539.80, 10,400.10 and 6,051.20 is: 8,346.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,539.80 : 10,400.10 = 6,051.20 : x
  2. Step 2: Convert to fraction form
    7,539.80/10,400.10 = 6,051.20/x
  3. Step 3: Cross multiply
    7,539.80x = 10,400.10 × 6,051.20
  4. Step 4: Simplify right side
    7,539.80x = 62,933,085.12
  5. Step 5: Solve for x
    x = 62,933,085.12/7,539.80
  6. Step 6: Final answer
    x = 8,346.78

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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.