Home / 14,919.40-22,381.80-6,155.20

Finding the Fourth Proportional to 14,919.40, 22,381.80 and 6,155.20

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Solution

The fourth proportional to 14,919.40, 22,381.80 and 6,155.20 is: 9,233.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,919.40 : 22,381.80 = 6,155.20 : x
  2. Step 2: Convert to fraction form
    14,919.40/22,381.80 = 6,155.20/x
  3. Step 3: Cross multiply
    14,919.40x = 22,381.80 × 6,155.20
  4. Step 4: Simplify right side
    14,919.40x = 137,764,455.36
  5. Step 5: Solve for x
    x = 137,764,455.36/14,919.40
  6. Step 6: Final answer
    x = 9,233.91

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1.5x scale

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.