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Finding the Fourth Proportional to 16,312.30, 22,510.22 and 9,238.78

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Solution

The fourth proportional to 16,312.30, 22,510.22 and 9,238.78 is: 12,749.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,312.30 : 22,510.22 = 9,238.78 : x
  2. Step 2: Convert to fraction form
    16,312.30/22,510.22 = 9,238.78/x
  3. Step 3: Cross multiply
    16,312.30x = 22,510.22 × 9,238.78
  4. Step 4: Simplify right side
    16,312.30x = 207,966,970.33
  5. Step 5: Solve for x
    x = 207,966,970.33/16,312.30
  6. Step 6: Final answer
    x = 12,749.09

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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.