Home / 15,766.08-21,758.10-9,051.72

Finding the Fourth Proportional to 15,766.08, 21,758.10 and 9,051.72

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Solution

The fourth proportional to 15,766.08, 21,758.10 and 9,051.72 is: 12,491.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,766.08 : 21,758.10 = 9,051.72 : x
  2. Step 2: Convert to fraction form
    15,766.08/21,758.10 = 9,051.72/x
  3. Step 3: Cross multiply
    15,766.08x = 21,758.10 × 9,051.72
  4. Step 4: Simplify right side
    15,766.08x = 196,948,228.93
  5. Step 5: Solve for x
    x = 196,948,228.93/15,766.08
  6. Step 6: Final answer
    x = 12,491.90

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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.