Home / 13,570.20-18,729.61-9,274.76

Finding the Fourth Proportional to 13,570.20, 18,729.61 and 9,274.76

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Solution

The fourth proportional to 13,570.20, 18,729.61 and 9,274.76 is: 12,801.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,570.20 : 18,729.61 = 9,274.76 : x
  2. Step 2: Convert to fraction form
    13,570.20/18,729.61 = 9,274.76/x
  3. Step 3: Cross multiply
    13,570.20x = 18,729.61 × 9,274.76
  4. Step 4: Simplify right side
    13,570.20x = 173,712,637.64
  5. Step 5: Solve for x
    x = 173,712,637.64/13,570.20
  6. Step 6: Final answer
    x = 12,801.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.