Home / 10,040.55-13,854.27-6,688.36

Finding the Fourth Proportional to 10,040.55, 13,854.27 and 6,688.36

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Solution

The fourth proportional to 10,040.55, 13,854.27 and 6,688.36 is: 9,228.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,040.55 : 13,854.27 = 6,688.36 : x
  2. Step 2: Convert to fraction form
    10,040.55/13,854.27 = 6,688.36/x
  3. Step 3: Cross multiply
    10,040.55x = 13,854.27 × 6,688.36
  4. Step 4: Simplify right side
    10,040.55x = 92,662,345.30
  5. Step 5: Solve for x
    x = 92,662,345.30/10,040.55
  6. Step 6: Final answer
    x = 9,228.82

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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.