Home / 8,559.32-11,807.79-5,574.05

Finding the Fourth Proportional to 8,559.32, 11,807.79 and 5,574.05

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Solution

The fourth proportional to 8,559.32, 11,807.79 and 5,574.05 is: 7,689.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,559.32 : 11,807.79 = 5,574.05 : x
  2. Step 2: Convert to fraction form
    8,559.32/11,807.79 = 5,574.05/x
  3. Step 3: Cross multiply
    8,559.32x = 11,807.79 × 5,574.05
  4. Step 4: Simplify right side
    8,559.32x = 65,817,211.85
  5. Step 5: Solve for x
    x = 65,817,211.85/8,559.32
  6. Step 6: Final answer
    x = 7,689.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.