Home / 8,373.84-11,549.20-7,430.32

Finding the Fourth Proportional to 8,373.84, 11,549.20 and 7,430.32

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Solution

The fourth proportional to 8,373.84, 11,549.20 and 7,430.32 is: 10,247.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,373.84 : 11,549.20 = 7,430.32 : x
  2. Step 2: Convert to fraction form
    8,373.84/11,549.20 = 7,430.32/x
  3. Step 3: Cross multiply
    8,373.84x = 11,549.20 × 7,430.32
  4. Step 4: Simplify right side
    8,373.84x = 85,814,251.74
  5. Step 5: Solve for x
    x = 85,814,251.74/8,373.84
  6. Step 6: Final answer
    x = 10,247.90

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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.