Home / 6,666.12-9,203.76-5,150.88

Finding the Fourth Proportional to 6,666.12, 9,203.76 and 5,150.88

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Solution

The fourth proportional to 6,666.12, 9,203.76 and 5,150.88 is: 7,111.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,666.12 : 9,203.76 = 5,150.88 : x
  2. Step 2: Convert to fraction form
    6,666.12/9,203.76 = 5,150.88/x
  3. Step 3: Cross multiply
    6,666.12x = 9,203.76 × 5,150.88
  4. Step 4: Simplify right side
    6,666.12x = 47,407,463.31
  5. Step 5: Solve for x
    x = 47,407,463.31/6,666.12
  6. Step 6: Final answer
    x = 7,111.70

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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.