Home / 15,991.83-23,988.96-4,305.15

Finding the Fourth Proportional to 15,991.83, 23,988.96 and 4,305.15

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Solution

The fourth proportional to 15,991.83, 23,988.96 and 4,305.15 is: 6,458.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,991.83 : 23,988.96 = 4,305.15 : x
  2. Step 2: Convert to fraction form
    15,991.83/23,988.96 = 4,305.15/x
  3. Step 3: Cross multiply
    15,991.83x = 23,988.96 × 4,305.15
  4. Step 4: Simplify right side
    15,991.83x = 103,276,071.14
  5. Step 5: Solve for x
    x = 103,276,071.14/15,991.83
  6. Step 6: Final answer
    x = 6,458.05

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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.