Home / 10,908.16-15,052.85-6,666.31

Finding the Fourth Proportional to 10,908.16, 15,052.85 and 6,666.31

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Solution

The fourth proportional to 10,908.16, 15,052.85 and 6,666.31 is: 9,199.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,908.16 : 15,052.85 = 6,666.31 : x
  2. Step 2: Convert to fraction form
    10,908.16/15,052.85 = 6,666.31/x
  3. Step 3: Cross multiply
    10,908.16x = 15,052.85 × 6,666.31
  4. Step 4: Simplify right side
    10,908.16x = 100,346,964.48
  5. Step 5: Solve for x
    x = 100,346,964.48/10,908.16
  6. Step 6: Final answer
    x = 9,199.26

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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.