Home / 15,299.40-22,950.20-6,405.78

Finding the Fourth Proportional to 15,299.40, 22,950.20 and 6,405.78

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Solution

The fourth proportional to 15,299.40, 22,950.20 and 6,405.78 is: 9,609.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,299.40 : 22,950.20 = 6,405.78 : x
  2. Step 2: Convert to fraction form
    15,299.40/22,950.20 = 6,405.78/x
  3. Step 3: Cross multiply
    15,299.40x = 22,950.20 × 6,405.78
  4. Step 4: Simplify right side
    15,299.40x = 147,014,034.23
  5. Step 5: Solve for x
    x = 147,014,034.23/15,299.40
  6. Step 6: Final answer
    x = 9,609.13

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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.