Home / 13,931.30-19,226.90-7,963.22

Finding the Fourth Proportional to 13,931.30, 19,226.90 and 7,963.22

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Solution

The fourth proportional to 13,931.30, 19,226.90 and 7,963.22 is: 10,990.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,931.30 : 19,226.90 = 7,963.22 : x
  2. Step 2: Convert to fraction form
    13,931.30/19,226.90 = 7,963.22/x
  3. Step 3: Cross multiply
    13,931.30x = 19,226.90 × 7,963.22
  4. Step 4: Simplify right side
    13,931.30x = 153,108,034.62
  5. Step 5: Solve for x
    x = 153,108,034.62/13,931.30
  6. Step 6: Final answer
    x = 10,990.22

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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.