Home / 9,740.70-13,443.41-6,386.34

Finding the Fourth Proportional to 9,740.70, 13,443.41 and 6,386.34

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Solution

The fourth proportional to 9,740.70, 13,443.41 and 6,386.34 is: 8,813.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,740.70 : 13,443.41 = 6,386.34 : x
  2. Step 2: Convert to fraction form
    9,740.70/13,443.41 = 6,386.34/x
  3. Step 3: Cross multiply
    9,740.70x = 13,443.41 × 6,386.34
  4. Step 4: Simplify right side
    9,740.70x = 85,854,155.09
  5. Step 5: Solve for x
    x = 85,854,155.09/9,740.70
  6. Step 6: Final answer
    x = 8,813.96

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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.