Home / 15,367.68-21,207.83-9,399.24

Finding the Fourth Proportional to 15,367.68, 21,207.83 and 9,399.24

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Solution

The fourth proportional to 15,367.68, 21,207.83 and 9,399.24 is: 12,971.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,367.68 : 21,207.83 = 9,399.24 : x
  2. Step 2: Convert to fraction form
    15,367.68/21,207.83 = 9,399.24/x
  3. Step 3: Cross multiply
    15,367.68x = 21,207.83 × 9,399.24
  4. Step 4: Simplify right side
    15,367.68x = 199,337,484.05
  5. Step 5: Solve for x
    x = 199,337,484.05/15,367.68
  6. Step 6: Final answer
    x = 12,971.22

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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.