Home / 14,870.40-20,520.84-8,156.04

Finding the Fourth Proportional to 14,870.40, 20,520.84 and 8,156.04

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Solution

The fourth proportional to 14,870.40, 20,520.84 and 8,156.04 is: 11,255.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,870.40 : 20,520.84 = 8,156.04 : x
  2. Step 2: Convert to fraction form
    14,870.40/20,520.84 = 8,156.04/x
  3. Step 3: Cross multiply
    14,870.40x = 20,520.84 × 8,156.04
  4. Step 4: Simplify right side
    14,870.40x = 167,368,791.87
  5. Step 5: Solve for x
    x = 167,368,791.87/14,870.40
  6. Step 6: Final answer
    x = 11,255.16

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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.