Home / 6,108.18-9,140.40-5,289.28

Finding the Fourth Proportional to 6,108.18, 9,140.40 and 5,289.28

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Solution

The fourth proportional to 6,108.18, 9,140.40 and 5,289.28 is: 7,914.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,108.18 : 9,140.40 = 5,289.28 : x
  2. Step 2: Convert to fraction form
    6,108.18/9,140.40 = 5,289.28/x
  3. Step 3: Cross multiply
    6,108.18x = 9,140.40 × 5,289.28
  4. Step 4: Simplify right side
    6,108.18x = 48,346,134.91
  5. Step 5: Solve for x
    x = 48,346,134.91/6,108.18
  6. Step 6: Final answer
    x = 7,914.98

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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.