Home / 16,871.43-23,279.40-9,703.84

Finding the Fourth Proportional to 16,871.43, 23,279.40 and 9,703.84

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Solution

The fourth proportional to 16,871.43, 23,279.40 and 9,703.84 is: 13,389.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,871.43 : 23,279.40 = 9,703.84 : x
  2. Step 2: Convert to fraction form
    16,871.43/23,279.40 = 9,703.84/x
  3. Step 3: Cross multiply
    16,871.43x = 23,279.40 × 9,703.84
  4. Step 4: Simplify right side
    16,871.43x = 225,899,572.90
  5. Step 5: Solve for x
    x = 225,899,572.90/16,871.43
  6. Step 6: Final answer
    x = 13,389.47

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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.