Home / 15,987.95-23,977.83-4,740.66

Finding the Fourth Proportional to 15,987.95, 23,977.83 and 4,740.66

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Solution

The fourth proportional to 15,987.95, 23,977.83 and 4,740.66 is: 7,109.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,987.95 : 23,977.83 = 4,740.66 : x
  2. Step 2: Convert to fraction form
    15,987.95/23,977.83 = 4,740.66/x
  3. Step 3: Cross multiply
    15,987.95x = 23,977.83 × 4,740.66
  4. Step 4: Simplify right side
    15,987.95x = 113,670,761.79
  5. Step 5: Solve for x
    x = 113,670,761.79/15,987.95
  6. Step 6: Final answer
    x = 7,109.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.