Home / 11,381.55-17,080.07-6,985.59

Finding the Fourth Proportional to 11,381.55, 17,080.07 and 6,985.59

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Solution

The fourth proportional to 11,381.55, 17,080.07 and 6,985.59 is: 10,483.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,381.55 : 17,080.07 = 6,985.59 : x
  2. Step 2: Convert to fraction form
    11,381.55/17,080.07 = 6,985.59/x
  3. Step 3: Cross multiply
    11,381.55x = 17,080.07 × 6,985.59
  4. Step 4: Simplify right side
    11,381.55x = 119,314,366.19
  5. Step 5: Solve for x
    x = 119,314,366.19/11,381.55
  6. Step 6: Final answer
    x = 10,483.14

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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.