Home / 9,123.42-13,685.12-2,548.78

Finding the Fourth Proportional to 9,123.42, 13,685.12 and 2,548.78

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Solution

The fourth proportional to 9,123.42, 13,685.12 and 2,548.78 is: 3,823.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,123.42 : 13,685.12 = 2,548.78 : x
  2. Step 2: Convert to fraction form
    9,123.42/13,685.12 = 2,548.78/x
  3. Step 3: Cross multiply
    9,123.42x = 13,685.12 × 2,548.78
  4. Step 4: Simplify right side
    9,123.42x = 34,880,360.15
  5. Step 5: Solve for x
    x = 34,880,360.15/9,123.42
  6. Step 6: Final answer
    x = 3,823.17

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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.