Home / 14,015.10-21,004.20-10,299.90

Finding the Fourth Proportional to 14,015.10, 21,004.20 and 10,299.90

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Solution

The fourth proportional to 14,015.10, 21,004.20 and 10,299.90 is: 15,436.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,015.10 : 21,004.20 = 10,299.90 : x
  2. Step 2: Convert to fraction form
    14,015.10/21,004.20 = 10,299.90/x
  3. Step 3: Cross multiply
    14,015.10x = 21,004.20 × 10,299.90
  4. Step 4: Simplify right side
    14,015.10x = 216,341,159.58
  5. Step 5: Solve for x
    x = 216,341,159.58/14,015.10
  6. Step 6: Final answer
    x = 15,436.29

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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.