Home / 10,074.40-13,909.44-7,712.32

Finding the Fourth Proportional to 10,074.40, 13,909.44 and 7,712.32

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Solution

The fourth proportional to 10,074.40, 13,909.44 and 7,712.32 is: 10,648.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,074.40 : 13,909.44 = 7,712.32 : x
  2. Step 2: Convert to fraction form
    10,074.40/13,909.44 = 7,712.32/x
  3. Step 3: Cross multiply
    10,074.40x = 13,909.44 × 7,712.32
  4. Step 4: Simplify right side
    10,074.40x = 107,274,052.30
  5. Step 5: Solve for x
    x = 107,274,052.30/10,074.40
  6. Step 6: Final answer
    x = 10,648.18

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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.