Home / 16,718.72-23,071.71-9,165.36

Finding the Fourth Proportional to 16,718.72, 23,071.71 and 9,165.36

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Solution

The fourth proportional to 16,718.72, 23,071.71 and 9,165.36 is: 12,648.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,718.72 : 23,071.71 = 9,165.36 : x
  2. Step 2: Convert to fraction form
    16,718.72/23,071.71 = 9,165.36/x
  3. Step 3: Cross multiply
    16,718.72x = 23,071.71 × 9,165.36
  4. Step 4: Simplify right side
    16,718.72x = 211,460,527.97
  5. Step 5: Solve for x
    x = 211,460,527.97/16,718.72
  6. Step 6: Final answer
    x = 12,648.13

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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.