Home / 13,041.28-18,000.66-10,689.04

Finding the Fourth Proportional to 13,041.28, 18,000.66 and 10,689.04

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Solution

The fourth proportional to 13,041.28, 18,000.66 and 10,689.04 is: 14,753.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,041.28 : 18,000.66 = 10,689.04 : x
  2. Step 2: Convert to fraction form
    13,041.28/18,000.66 = 10,689.04/x
  3. Step 3: Cross multiply
    13,041.28x = 18,000.66 × 10,689.04
  4. Step 4: Simplify right side
    13,041.28x = 192,409,774.77
  5. Step 5: Solve for x
    x = 192,409,774.77/13,041.28
  6. Step 6: Final answer
    x = 14,753.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.