Home / 14,955.23-20,639.61-8,986.75

Finding the Fourth Proportional to 14,955.23, 20,639.61 and 8,986.75

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Solution

The fourth proportional to 14,955.23, 20,639.61 and 8,986.75 is: 12,402.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,955.23 : 20,639.61 = 8,986.75 : x
  2. Step 2: Convert to fraction form
    14,955.23/20,639.61 = 8,986.75/x
  3. Step 3: Cross multiply
    14,955.23x = 20,639.61 × 8,986.75
  4. Step 4: Simplify right side
    14,955.23x = 185,482,963.57
  5. Step 5: Solve for x
    x = 185,482,963.57/14,955.23
  6. Step 6: Final answer
    x = 12,402.55

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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.