Home / 16,800.28-23,185.38-9,729.16

Finding the Fourth Proportional to 16,800.28, 23,185.38 and 9,729.16

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Solution

The fourth proportional to 16,800.28, 23,185.38 and 9,729.16 is: 13,426.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,800.28 : 23,185.38 = 9,729.16 : x
  2. Step 2: Convert to fraction form
    16,800.28/23,185.38 = 9,729.16/x
  3. Step 3: Cross multiply
    16,800.28x = 23,185.38 × 9,729.16
  4. Step 4: Simplify right side
    16,800.28x = 225,574,271.68
  5. Step 5: Solve for x
    x = 225,574,271.68/16,800.28
  6. Step 6: Final answer
    x = 13,426.82

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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.