Home / 10,013.80-15,000.19-5,622.05

Finding the Fourth Proportional to 10,013.80, 15,000.19 and 5,622.05

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Solution

The fourth proportional to 10,013.80, 15,000.19 and 5,622.05 is: 8,421.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,013.80 : 15,000.19 = 5,622.05 : x
  2. Step 2: Convert to fraction form
    10,013.80/15,000.19 = 5,622.05/x
  3. Step 3: Cross multiply
    10,013.80x = 15,000.19 × 5,622.05
  4. Step 4: Simplify right side
    10,013.80x = 84,331,715.08
  5. Step 5: Solve for x
    x = 84,331,715.08/10,013.80
  6. Step 6: Final answer
    x = 8,421.55

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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.