Home / 7,748.40-11,625.28-4,242.16

Finding the Fourth Proportional to 7,748.40, 11,625.28 and 4,242.16

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Solution

The fourth proportional to 7,748.40, 11,625.28 and 4,242.16 is: 6,364.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,748.40 : 11,625.28 = 4,242.16 : x
  2. Step 2: Convert to fraction form
    7,748.40/11,625.28 = 4,242.16/x
  3. Step 3: Cross multiply
    7,748.40x = 11,625.28 × 4,242.16
  4. Step 4: Simplify right side
    7,748.40x = 49,316,297.80
  5. Step 5: Solve for x
    x = 49,316,297.80/7,748.40
  6. Step 6: Final answer
    x = 6,364.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.