Home / 12,666.18-18,999.36-3,901.08

Finding the Fourth Proportional to 12,666.18, 18,999.36 and 3,901.08

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Solution

The fourth proportional to 12,666.18, 18,999.36 and 3,901.08 is: 5,851.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,666.18 : 18,999.36 = 3,901.08 : x
  2. Step 2: Convert to fraction form
    12,666.18/18,999.36 = 3,901.08/x
  3. Step 3: Cross multiply
    12,666.18x = 18,999.36 × 3,901.08
  4. Step 4: Simplify right side
    12,666.18x = 74,118,023.31
  5. Step 5: Solve for x
    x = 74,118,023.31/12,666.18
  6. Step 6: Final answer
    x = 5,851.65

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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.