Home / 13,020.88-19,520.35-10,549.57

Finding the Fourth Proportional to 13,020.88, 19,520.35 and 10,549.57

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Solution

The fourth proportional to 13,020.88, 19,520.35 and 10,549.57 is: 15,815.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,020.88 : 19,520.35 = 10,549.57 : x
  2. Step 2: Convert to fraction form
    13,020.88/19,520.35 = 10,549.57/x
  3. Step 3: Cross multiply
    13,020.88x = 19,520.35 × 10,549.57
  4. Step 4: Simplify right side
    13,020.88x = 205,931,298.75
  5. Step 5: Solve for x
    x = 205,931,298.75/13,020.88
  6. Step 6: Final answer
    x = 15,815.47

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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.