Home / 10,378.68-15,570.48-4,139.04

Finding the Fourth Proportional to 10,378.68, 15,570.48 and 4,139.04

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Solution

The fourth proportional to 10,378.68, 15,570.48 and 4,139.04 is: 6,209.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,378.68 : 15,570.48 = 4,139.04 : x
  2. Step 2: Convert to fraction form
    10,378.68/15,570.48 = 4,139.04/x
  3. Step 3: Cross multiply
    10,378.68x = 15,570.48 × 4,139.04
  4. Step 4: Simplify right side
    10,378.68x = 64,446,839.54
  5. Step 5: Solve for x
    x = 64,446,839.54/10,378.68
  6. Step 6: Final answer
    x = 6,209.54

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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.