Home / 9,057.20-13,585.80-6,870.20

Finding the Fourth Proportional to 9,057.20, 13,585.80 and 6,870.20

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Solution

The fourth proportional to 9,057.20, 13,585.80 and 6,870.20 is: 10,305.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,057.20 : 13,585.80 = 6,870.20 : x
  2. Step 2: Convert to fraction form
    9,057.20/13,585.80 = 6,870.20/x
  3. Step 3: Cross multiply
    9,057.20x = 13,585.80 × 6,870.20
  4. Step 4: Simplify right side
    9,057.20x = 93,337,163.16
  5. Step 5: Solve for x
    x = 93,337,163.16/9,057.20
  6. Step 6: Final answer
    x = 10,305.30

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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.