Home / 10,228.43-14,112.65-7,840.79

Finding the Fourth Proportional to 10,228.43, 14,112.65 and 7,840.79

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Solution

The fourth proportional to 10,228.43, 14,112.65 and 7,840.79 is: 10,818.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,228.43 : 14,112.65 = 7,840.79 : x
  2. Step 2: Convert to fraction form
    10,228.43/14,112.65 = 7,840.79/x
  3. Step 3: Cross multiply
    10,228.43x = 14,112.65 × 7,840.79
  4. Step 4: Simplify right side
    10,228.43x = 110,654,215.23
  5. Step 5: Solve for x
    x = 110,654,215.23/10,228.43
  6. Step 6: Final answer
    x = 10,818.30

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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.