Home / 14,355.38-19,809.46-7,981.48

Finding the Fourth Proportional to 14,355.38, 19,809.46 and 7,981.48

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Solution

The fourth proportional to 14,355.38, 19,809.46 and 7,981.48 is: 11,013.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,355.38 : 19,809.46 = 7,981.48 : x
  2. Step 2: Convert to fraction form
    14,355.38/19,809.46 = 7,981.48/x
  3. Step 3: Cross multiply
    14,355.38x = 19,809.46 × 7,981.48
  4. Step 4: Simplify right side
    14,355.38x = 158,108,808.80
  5. Step 5: Solve for x
    x = 158,108,808.80/14,355.38
  6. Step 6: Final answer
    x = 11,013.91

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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.