Home / 14,455.20-19,948.17-8,167.57

Finding the Fourth Proportional to 14,455.20, 19,948.17 and 8,167.57

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Solution

The fourth proportional to 14,455.20, 19,948.17 and 8,167.57 is: 11,271.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,455.20 : 19,948.17 = 8,167.57 : x
  2. Step 2: Convert to fraction form
    14,455.20/19,948.17 = 8,167.57/x
  3. Step 3: Cross multiply
    14,455.20x = 19,948.17 × 8,167.57
  4. Step 4: Simplify right side
    14,455.20x = 162,928,074.85
  5. Step 5: Solve for x
    x = 162,928,074.85/14,455.20
  6. Step 6: Final answer
    x = 11,271.24

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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.