Home / 11,381.16-15,710.28-6,666.96

Finding the Fourth Proportional to 11,381.16, 15,710.28 and 6,666.96

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Solution

The fourth proportional to 11,381.16, 15,710.28 and 6,666.96 is: 9,202.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,381.16 : 15,710.28 = 6,666.96 : x
  2. Step 2: Convert to fraction form
    11,381.16/15,710.28 = 6,666.96/x
  3. Step 3: Cross multiply
    11,381.16x = 15,710.28 × 6,666.96
  4. Step 4: Simplify right side
    11,381.16x = 104,739,808.35
  5. Step 5: Solve for x
    x = 104,739,808.35/11,381.16
  6. Step 6: Final answer
    x = 9,202.91

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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.