Home / 15,036.20-20,742.65-9,933.72

Finding the Fourth Proportional to 15,036.20, 20,742.65 and 9,933.72

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Solution

The fourth proportional to 15,036.20, 20,742.65 and 9,933.72 is: 13,703.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,036.20 : 20,742.65 = 9,933.72 : x
  2. Step 2: Convert to fraction form
    15,036.20/20,742.65 = 9,933.72/x
  3. Step 3: Cross multiply
    15,036.20x = 20,742.65 × 9,933.72
  4. Step 4: Simplify right side
    15,036.20x = 206,051,586.96
  5. Step 5: Solve for x
    x = 206,051,586.96/15,036.20
  6. Step 6: Final answer
    x = 13,703.70

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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.