Home / 15,727.77-21,701.70-9,358.16

Finding the Fourth Proportional to 15,727.77, 21,701.70 and 9,358.16

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Solution

The fourth proportional to 15,727.77, 21,701.70 and 9,358.16 is: 12,912.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,727.77 : 21,701.70 = 9,358.16 : x
  2. Step 2: Convert to fraction form
    15,727.77/21,701.70 = 9,358.16/x
  3. Step 3: Cross multiply
    15,727.77x = 21,701.70 × 9,358.16
  4. Step 4: Simplify right side
    15,727.77x = 203,087,872.36
  5. Step 5: Solve for x
    x = 203,087,872.36/15,727.77
  6. Step 6: Final answer
    x = 12,912.69

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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.