Home / 12,166.88-16,775.08-10,153.18

Finding the Fourth Proportional to 12,166.88, 16,775.08 and 10,153.18

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Solution

The fourth proportional to 12,166.88, 16,775.08 and 10,153.18 is: 13,998.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,166.88 : 16,775.08 = 10,153.18 : x
  2. Step 2: Convert to fraction form
    12,166.88/16,775.08 = 10,153.18/x
  3. Step 3: Cross multiply
    12,166.88x = 16,775.08 × 10,153.18
  4. Step 4: Simplify right side
    12,166.88x = 170,320,402.34
  5. Step 5: Solve for x
    x = 170,320,402.34/12,166.88
  6. Step 6: Final answer
    x = 13,998.70

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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.