Home / 18,710.47-25,820.60-10,212.66

Finding the Fourth Proportional to 18,710.47, 25,820.60 and 10,212.66

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Solution

The fourth proportional to 18,710.47, 25,820.60 and 10,212.66 is: 14,093.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,710.47 : 25,820.60 = 10,212.66 : x
  2. Step 2: Convert to fraction form
    18,710.47/25,820.60 = 10,212.66/x
  3. Step 3: Cross multiply
    18,710.47x = 25,820.60 × 10,212.66
  4. Step 4: Simplify right side
    18,710.47x = 263,697,008.80
  5. Step 5: Solve for x
    x = 263,697,008.80/18,710.47
  6. Step 6: Final answer
    x = 14,093.55

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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.