Home / 13,868.16-19,138.50-9,148.92

Finding the Fourth Proportional to 13,868.16, 19,138.50 and 9,148.92

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Solution

The fourth proportional to 13,868.16, 19,138.50 and 9,148.92 is: 12,625.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,868.16 : 19,138.50 = 9,148.92 : x
  2. Step 2: Convert to fraction form
    13,868.16/19,138.50 = 9,148.92/x
  3. Step 3: Cross multiply
    13,868.16x = 19,138.50 × 9,148.92
  4. Step 4: Simplify right side
    13,868.16x = 175,096,605.42
  5. Step 5: Solve for x
    x = 175,096,605.42/13,868.16
  6. Step 6: Final answer
    x = 12,625.80

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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.