Home / 9,660.19-13,331.11-5,411.39

Finding the Fourth Proportional to 9,660.19, 13,331.11 and 5,411.39

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Solution

The fourth proportional to 9,660.19, 13,331.11 and 5,411.39 is: 7,467.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,660.19 : 13,331.11 = 5,411.39 : x
  2. Step 2: Convert to fraction form
    9,660.19/13,331.11 = 5,411.39/x
  3. Step 3: Cross multiply
    9,660.19x = 13,331.11 × 5,411.39
  4. Step 4: Simplify right side
    9,660.19x = 72,139,835.34
  5. Step 5: Solve for x
    x = 72,139,835.34/9,660.19
  6. Step 6: Final answer
    x = 7,467.75

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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.