Home / 13,888.02-20,833.65-8,694.30

Finding the Fourth Proportional to 13,888.02, 20,833.65 and 8,694.30

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Solution

The fourth proportional to 13,888.02, 20,833.65 and 8,694.30 is: 13,042.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,888.02 : 20,833.65 = 8,694.30 : x
  2. Step 2: Convert to fraction form
    13,888.02/20,833.65 = 8,694.30/x
  3. Step 3: Cross multiply
    13,888.02x = 20,833.65 × 8,694.30
  4. Step 4: Simplify right side
    13,888.02x = 181,134,003.20
  5. Step 5: Solve for x
    x = 181,134,003.20/13,888.02
  6. Step 6: Final answer
    x = 13,042.46

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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.