Home / 13,403.88-20,095.83-8,140.10

Finding the Fourth Proportional to 13,403.88, 20,095.83 and 8,140.10

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Solution

The fourth proportional to 13,403.88, 20,095.83 and 8,140.10 is: 12,204.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,403.88 : 20,095.83 = 8,140.10 : x
  2. Step 2: Convert to fraction form
    13,403.88/20,095.83 = 8,140.10/x
  3. Step 3: Cross multiply
    13,403.88x = 20,095.83 × 8,140.10
  4. Step 4: Simplify right side
    13,403.88x = 163,581,965.30
  5. Step 5: Solve for x
    x = 163,581,965.30/13,403.88
  6. Step 6: Final answer
    x = 12,204.08

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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.