Home / 13,543.02-20,315.88-4,182.66

Finding the Fourth Proportional to 13,543.02, 20,315.88 and 4,182.66

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Solution

The fourth proportional to 13,543.02, 20,315.88 and 4,182.66 is: 6,274.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,543.02 : 20,315.88 = 4,182.66 : x
  2. Step 2: Convert to fraction form
    13,543.02/20,315.88 = 4,182.66/x
  3. Step 3: Cross multiply
    13,543.02x = 20,315.88 × 4,182.66
  4. Step 4: Simplify right side
    13,543.02x = 84,974,418.64
  5. Step 5: Solve for x
    x = 84,974,418.64/13,543.02
  6. Step 6: Final answer
    x = 6,274.41

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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.