Home / 6,139.80-9,185.40-5,327.10

Finding the Fourth Proportional to 6,139.80, 9,185.40 and 5,327.10

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Solution

The fourth proportional to 6,139.80, 9,185.40 and 5,327.10 is: 7,969.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,139.80 : 9,185.40 = 5,327.10 : x
  2. Step 2: Convert to fraction form
    6,139.80/9,185.40 = 5,327.10/x
  3. Step 3: Cross multiply
    6,139.80x = 9,185.40 × 5,327.10
  4. Step 4: Simplify right side
    6,139.80x = 48,931,544.34
  5. Step 5: Solve for x
    x = 48,931,544.34/6,139.80
  6. Step 6: Final answer
    x = 7,969.57

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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.