Home / 10,309.28-14,217.42-8,719.26

Finding the Fourth Proportional to 10,309.28, 14,217.42 and 8,719.26

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Solution

The fourth proportional to 10,309.28, 14,217.42 and 8,719.26 is: 12,024.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,309.28 : 14,217.42 = 8,719.26 : x
  2. Step 2: Convert to fraction form
    10,309.28/14,217.42 = 8,719.26/x
  3. Step 3: Cross multiply
    10,309.28x = 14,217.42 × 8,719.26
  4. Step 4: Simplify right side
    10,309.28x = 123,965,381.51
  5. Step 5: Solve for x
    x = 123,965,381.51/10,309.28
  6. Step 6: Final answer
    x = 12,024.64

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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.