Home / 14,987.15-20,669.57-9,017.70

Finding the Fourth Proportional to 14,987.15, 20,669.57 and 9,017.70

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Solution

The fourth proportional to 14,987.15, 20,669.57 and 9,017.70 is: 12,436.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,987.15 : 20,669.57 = 9,017.70 : x
  2. Step 2: Convert to fraction form
    14,987.15/20,669.57 = 9,017.70/x
  3. Step 3: Cross multiply
    14,987.15x = 20,669.57 × 9,017.70
  4. Step 4: Simplify right side
    14,987.15x = 186,391,936.30
  5. Step 5: Solve for x
    x = 186,391,936.30/14,987.15
  6. Step 6: Final answer
    x = 12,436.78

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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.