Home / 13,615.75-20,426.02-6,220.95

Finding the Fourth Proportional to 13,615.75, 20,426.02 and 6,220.95

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Solution

The fourth proportional to 13,615.75, 20,426.02 and 6,220.95 is: 9,332.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,615.75 : 20,426.02 = 6,220.95 : x
  2. Step 2: Convert to fraction form
    13,615.75/20,426.02 = 6,220.95/x
  3. Step 3: Cross multiply
    13,615.75x = 20,426.02 × 6,220.95
  4. Step 4: Simplify right side
    13,615.75x = 127,069,306.86
  5. Step 5: Solve for x
    x = 127,069,306.86/13,615.75
  6. Step 6: Final answer
    x = 9,332.53

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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.