Home / 13,521.12-20,281.68-9,846.72

Finding the Fourth Proportional to 13,521.12, 20,281.68 and 9,846.72

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Solution

The fourth proportional to 13,521.12, 20,281.68 and 9,846.72 is: 14,770.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,521.12 : 20,281.68 = 9,846.72 : x
  2. Step 2: Convert to fraction form
    13,521.12/20,281.68 = 9,846.72/x
  3. Step 3: Cross multiply
    13,521.12x = 20,281.68 × 9,846.72
  4. Step 4: Simplify right side
    13,521.12x = 199,708,024.09
  5. Step 5: Solve for x
    x = 199,708,024.09/13,521.12
  6. Step 6: Final answer
    x = 14,770.08

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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.