Home / 13,340.28-20,012.85-4,576.08

Finding the Fourth Proportional to 13,340.28, 20,012.85 and 4,576.08

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Solution

The fourth proportional to 13,340.28, 20,012.85 and 4,576.08 is: 6,864.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,340.28 : 20,012.85 = 4,576.08 : x
  2. Step 2: Convert to fraction form
    13,340.28/20,012.85 = 4,576.08/x
  3. Step 3: Cross multiply
    13,340.28x = 20,012.85 × 4,576.08
  4. Step 4: Simplify right side
    13,340.28x = 91,580,402.63
  5. Step 5: Solve for x
    x = 91,580,402.63/13,340.28
  6. Step 6: Final answer
    x = 6,864.95

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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.