Home / 6,139.72-9,210.03-5,807.56

Finding the Fourth Proportional to 6,139.72, 9,210.03 and 5,807.56

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Solution

The fourth proportional to 6,139.72, 9,210.03 and 5,807.56 is: 8,711.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,139.72 : 9,210.03 = 5,807.56 : x
  2. Step 2: Convert to fraction form
    6,139.72/9,210.03 = 5,807.56/x
  3. Step 3: Cross multiply
    6,139.72x = 9,210.03 × 5,807.56
  4. Step 4: Simplify right side
    6,139.72x = 53,487,801.83
  5. Step 5: Solve for x
    x = 53,487,801.83/6,139.72
  6. Step 6: Final answer
    x = 8,711.77

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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.