Home / 12,868.85-19,304.78-4,547.13

Finding the Fourth Proportional to 12,868.85, 19,304.78 and 4,547.13

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Solution

The fourth proportional to 12,868.85, 19,304.78 and 4,547.13 is: 6,821.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,868.85 : 19,304.78 = 4,547.13 : x
  2. Step 2: Convert to fraction form
    12,868.85/19,304.78 = 4,547.13/x
  3. Step 3: Cross multiply
    12,868.85x = 19,304.78 × 4,547.13
  4. Step 4: Simplify right side
    12,868.85x = 87,781,321.55
  5. Step 5: Solve for x
    x = 87,781,321.55/12,868.85
  6. Step 6: Final answer
    x = 6,821.23

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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.