Home / 14,113.76-21,172.65-4,253.80

Finding the Fourth Proportional to 14,113.76, 21,172.65 and 4,253.80

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Solution

The fourth proportional to 14,113.76, 21,172.65 and 4,253.80 is: 6,381.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,113.76 : 21,172.65 = 4,253.80 : x
  2. Step 2: Convert to fraction form
    14,113.76/21,172.65 = 4,253.80/x
  3. Step 3: Cross multiply
    14,113.76x = 21,172.65 × 4,253.80
  4. Step 4: Simplify right side
    14,113.76x = 90,064,218.57
  5. Step 5: Solve for x
    x = 90,064,218.57/14,113.76
  6. Step 6: Final answer
    x = 6,381.31

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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.