Home / 9,238.16-12,748.65-4,989.22

Finding the Fourth Proportional to 9,238.16, 12,748.65 and 4,989.22

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Solution

The fourth proportional to 9,238.16, 12,748.65 and 4,989.22 is: 6,885.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,238.16 : 12,748.65 = 4,989.22 : x
  2. Step 2: Convert to fraction form
    9,238.16/12,748.65 = 4,989.22/x
  3. Step 3: Cross multiply
    9,238.16x = 12,748.65 × 4,989.22
  4. Step 4: Simplify right side
    9,238.16x = 63,605,794.70
  5. Step 5: Solve for x
    x = 63,605,794.70/9,238.16
  6. Step 6: Final answer
    x = 6,885.12

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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.