Home / 14,127.50-21,191.40-4,266.87

Finding the Fourth Proportional to 14,127.50, 21,191.40 and 4,266.87

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Solution

The fourth proportional to 14,127.50, 21,191.40 and 4,266.87 is: 6,400.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,127.50 : 21,191.40 = 4,266.87 : x
  2. Step 2: Convert to fraction form
    14,127.50/21,191.40 = 4,266.87/x
  3. Step 3: Cross multiply
    14,127.50x = 21,191.40 × 4,266.87
  4. Step 4: Simplify right side
    14,127.50x = 90,420,948.92
  5. Step 5: Solve for x
    x = 90,420,948.92/14,127.50
  6. Step 6: Final answer
    x = 6,400.35

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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.