Home / 14,190.03-19,581.48-7,902

Finding the Fourth Proportional to 14,190.03, 19,581.48 and 7,902

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Solution

The fourth proportional to 14,190.03, 19,581.48 and 7,902 is: 10,904.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,190.03 : 19,581.48 = 7,902 : x
  2. Step 2: Convert to fraction form
    14,190.03/19,581.48 = 7,902/x
  3. Step 3: Cross multiply
    14,190.03x = 19,581.48 × 7,902
  4. Step 4: Simplify right side
    14,190.03x = 154,732,854.96
  5. Step 5: Solve for x
    x = 154,732,854.96/14,190.03
  6. Step 6: Final answer
    x = 10,904.34

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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.