Home / 11,166.53-15,404.51-6,689.46

Finding the Fourth Proportional to 11,166.53, 15,404.51 and 6,689.46

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Solution

The fourth proportional to 11,166.53, 15,404.51 and 6,689.46 is: 9,228.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,166.53 : 15,404.51 = 6,689.46 : x
  2. Step 2: Convert to fraction form
    11,166.53/15,404.51 = 6,689.46/x
  3. Step 3: Cross multiply
    11,166.53x = 15,404.51 × 6,689.46
  4. Step 4: Simplify right side
    11,166.53x = 103,047,820.02
  5. Step 5: Solve for x
    x = 103,047,820.02/11,166.53
  6. Step 6: Final answer
    x = 9,228.28

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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.