Home / 9,906.76-13,671.34-5,430.68

Finding the Fourth Proportional to 9,906.76, 13,671.34 and 5,430.68

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Solution

The fourth proportional to 9,906.76, 13,671.34 and 5,430.68 is: 7,494.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,906.76 : 13,671.34 = 5,430.68 : x
  2. Step 2: Convert to fraction form
    9,906.76/13,671.34 = 5,430.68/x
  3. Step 3: Cross multiply
    9,906.76x = 13,671.34 × 5,430.68
  4. Step 4: Simplify right side
    9,906.76x = 74,244,672.71
  5. Step 5: Solve for x
    x = 74,244,672.71/9,906.76
  6. Step 6: Final answer
    x = 7,494.34

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Half scale
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Double scale
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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.