Home / 15,343.50-21,165.84-10,299.18

Finding the Fourth Proportional to 15,343.50, 21,165.84 and 10,299.18

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Solution

The fourth proportional to 15,343.50, 21,165.84 and 10,299.18 is: 14,207.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,343.50 : 21,165.84 = 10,299.18 : x
  2. Step 2: Convert to fraction form
    15,343.50/21,165.84 = 10,299.18/x
  3. Step 3: Cross multiply
    15,343.50x = 21,165.84 × 10,299.18
  4. Step 4: Simplify right side
    15,343.50x = 217,990,796.01
  5. Step 5: Solve for x
    x = 217,990,796.01/15,343.50
  6. Step 6: Final answer
    x = 14,207.37

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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.