Home / 16,487.79-22,754.26-9,315.22

Finding the Fourth Proportional to 16,487.79, 22,754.26 and 9,315.22

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Solution

The fourth proportional to 16,487.79, 22,754.26 and 9,315.22 is: 12,855.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,487.79 : 22,754.26 = 9,315.22 : x
  2. Step 2: Convert to fraction form
    16,487.79/22,754.26 = 9,315.22/x
  3. Step 3: Cross multiply
    16,487.79x = 22,754.26 × 9,315.22
  4. Step 4: Simplify right side
    16,487.79x = 211,960,847.35
  5. Step 5: Solve for x
    x = 211,960,847.35/16,487.79
  6. Step 6: Final answer
    x = 12,855.63

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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.