Home / 15,299.68-21,102.24-9,923.44

Finding the Fourth Proportional to 15,299.68, 21,102.24 and 9,923.44

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Solution

The fourth proportional to 15,299.68, 21,102.24 and 9,923.44 is: 13,687.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,299.68 : 21,102.24 = 9,923.44 : x
  2. Step 2: Convert to fraction form
    15,299.68/21,102.24 = 9,923.44/x
  3. Step 3: Cross multiply
    15,299.68x = 21,102.24 × 9,923.44
  4. Step 4: Simplify right side
    15,299.68x = 209,406,812.51
  5. Step 5: Solve for x
    x = 209,406,812.51/15,299.68
  6. Step 6: Final answer
    x = 13,687.01

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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.