Home / 10,139.85-15,207.01-6,873.05

Finding the Fourth Proportional to 10,139.85, 15,207.01 and 6,873.05

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Solution

The fourth proportional to 10,139.85, 15,207.01 and 6,873.05 is: 10,307.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,139.85 : 15,207.01 = 6,873.05 : x
  2. Step 2: Convert to fraction form
    10,139.85/15,207.01 = 6,873.05/x
  3. Step 3: Cross multiply
    10,139.85x = 15,207.01 × 6,873.05
  4. Step 4: Simplify right side
    10,139.85x = 104,518,560.92
  5. Step 5: Solve for x
    x = 104,518,560.92/10,139.85
  6. Step 6: Final answer
    x = 10,307.70

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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.