Home / 13,306.28-19,965.51-4,986.95

Finding the Fourth Proportional to 13,306.28, 19,965.51 and 4,986.95

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Solution

The fourth proportional to 13,306.28, 19,965.51 and 4,986.95 is: 7,482.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,306.28 : 19,965.51 = 4,986.95 : x
  2. Step 2: Convert to fraction form
    13,306.28/19,965.51 = 4,986.95/x
  3. Step 3: Cross multiply
    13,306.28x = 19,965.51 × 4,986.95
  4. Step 4: Simplify right side
    13,306.28x = 99,566,900.27
  5. Step 5: Solve for x
    x = 99,566,900.27/13,306.28
  6. Step 6: Final answer
    x = 7,482.70

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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.