Home / 18,933.75-26,132.51-12,560.77

Finding the Fourth Proportional to 18,933.75, 26,132.51 and 12,560.77

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Solution

The fourth proportional to 18,933.75, 26,132.51 and 12,560.77 is: 17,336.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,933.75 : 26,132.51 = 12,560.77 : x
  2. Step 2: Convert to fraction form
    18,933.75/26,132.51 = 12,560.77/x
  3. Step 3: Cross multiply
    18,933.75x = 26,132.51 × 12,560.77
  4. Step 4: Simplify right side
    18,933.75x = 328,244,254.17
  5. Step 5: Solve for x
    x = 328,244,254.17/18,933.75
  6. Step 6: Final answer
    x = 17,336.47

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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.