Home / 10,141.80-13,995.65-5,665.56

Finding the Fourth Proportional to 10,141.80, 13,995.65 and 5,665.56

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Solution

The fourth proportional to 10,141.80, 13,995.65 and 5,665.56 is: 7,818.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,141.80 : 13,995.65 = 5,665.56 : x
  2. Step 2: Convert to fraction form
    10,141.80/13,995.65 = 5,665.56/x
  3. Step 3: Cross multiply
    10,141.80x = 13,995.65 × 5,665.56
  4. Step 4: Simplify right side
    10,141.80x = 79,293,194.81
  5. Step 5: Solve for x
    x = 79,293,194.81/10,141.80
  6. Step 6: Final answer
    x = 7,818.45

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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.