Home / 16,875.54-23,288.34-9,321.78

Finding the Fourth Proportional to 16,875.54, 23,288.34 and 9,321.78

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Solution

The fourth proportional to 16,875.54, 23,288.34 and 9,321.78 is: 12,864.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,875.54 : 23,288.34 = 9,321.78 : x
  2. Step 2: Convert to fraction form
    16,875.54/23,288.34 = 9,321.78/x
  3. Step 3: Cross multiply
    16,875.54x = 23,288.34 × 9,321.78
  4. Step 4: Simplify right side
    16,875.54x = 217,088,782.05
  5. Step 5: Solve for x
    x = 217,088,782.05/16,875.54
  6. Step 6: Final answer
    x = 12,864.11

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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.