Home / 10,040.80-13,856.12-5,564.54

Finding the Fourth Proportional to 10,040.80, 13,856.12 and 5,564.54

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Solution

The fourth proportional to 10,040.80, 13,856.12 and 5,564.54 is: 7,678.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,040.80 : 13,856.12 = 5,564.54 : x
  2. Step 2: Convert to fraction form
    10,040.80/13,856.12 = 5,564.54/x
  3. Step 3: Cross multiply
    10,040.80x = 13,856.12 × 5,564.54
  4. Step 4: Simplify right side
    10,040.80x = 77,102,933.98
  5. Step 5: Solve for x
    x = 77,102,933.98/10,040.80
  6. Step 6: Final answer
    x = 7,678.96

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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.