Home / 18,712.90-25,823.80-10,756.66

Finding the Fourth Proportional to 18,712.90, 25,823.80 and 10,756.66

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Solution

The fourth proportional to 18,712.90, 25,823.80 and 10,756.66 is: 14,844.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,712.90 : 25,823.80 = 10,756.66 : x
  2. Step 2: Convert to fraction form
    18,712.90/25,823.80 = 10,756.66/x
  3. Step 3: Cross multiply
    18,712.90x = 25,823.80 × 10,756.66
  4. Step 4: Simplify right side
    18,712.90x = 277,777,855.00
  5. Step 5: Solve for x
    x = 277,777,855.00/18,712.90
  6. Step 6: Final answer
    x = 14,844.19

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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.