Home / 10,371.24-14,315.36-8,969.99

Finding the Fourth Proportional to 10,371.24, 14,315.36 and 8,969.99

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Solution

The fourth proportional to 10,371.24, 14,315.36 and 8,969.99 is: 12,381.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,371.24 : 14,315.36 = 8,969.99 : x
  2. Step 2: Convert to fraction form
    10,371.24/14,315.36 = 8,969.99/x
  3. Step 3: Cross multiply
    10,371.24x = 14,315.36 × 8,969.99
  4. Step 4: Simplify right side
    10,371.24x = 128,408,519.62
  5. Step 5: Solve for x
    x = 128,408,519.62/10,371.24
  6. Step 6: Final answer
    x = 12,381.21

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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.