Home / 12,070.31-18,101.03-4,170.81

Finding the Fourth Proportional to 12,070.31, 18,101.03 and 4,170.81

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Solution

The fourth proportional to 12,070.31, 18,101.03 and 4,170.81 is: 6,254.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,070.31 : 18,101.03 = 4,170.81 : x
  2. Step 2: Convert to fraction form
    12,070.31/18,101.03 = 4,170.81/x
  3. Step 3: Cross multiply
    12,070.31x = 18,101.03 × 4,170.81
  4. Step 4: Simplify right side
    12,070.31x = 75,495,967.36
  5. Step 5: Solve for x
    x = 75,495,967.36/12,070.31
  6. Step 6: Final answer
    x = 6,254.68

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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.