Home / 9,906.59-13,671.28-5,430.31

Finding the Fourth Proportional to 9,906.59, 13,671.28 and 5,430.31

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Solution

The fourth proportional to 9,906.59, 13,671.28 and 5,430.31 is: 7,493.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,906.59 : 13,671.28 = 5,430.31 : x
  2. Step 2: Convert to fraction form
    9,906.59/13,671.28 = 5,430.31/x
  3. Step 3: Cross multiply
    9,906.59x = 13,671.28 × 5,430.31
  4. Step 4: Simplify right side
    9,906.59x = 74,239,192.99
  5. Step 5: Solve for x
    x = 74,239,192.99/9,906.59
  6. Step 6: Final answer
    x = 7,493.92

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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.