Home / 10,143.12-14,001.54-6,365.28

Finding the Fourth Proportional to 10,143.12, 14,001.54 and 6,365.28

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Solution

The fourth proportional to 10,143.12, 14,001.54 and 6,365.28 is: 8,786.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,143.12 : 14,001.54 = 6,365.28 : x
  2. Step 2: Convert to fraction form
    10,143.12/14,001.54 = 6,365.28/x
  3. Step 3: Cross multiply
    10,143.12x = 14,001.54 × 6,365.28
  4. Step 4: Simplify right side
    10,143.12x = 89,123,722.53
  5. Step 5: Solve for x
    x = 89,123,722.53/10,143.12
  6. Step 6: Final answer
    x = 8,786.62

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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.