Home / 17,113.93-25,671.80-5,428.06

Finding the Fourth Proportional to 17,113.93, 25,671.80 and 5,428.06

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Solution

The fourth proportional to 17,113.93, 25,671.80 and 5,428.06 is: 8,142.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,113.93 : 25,671.80 = 5,428.06 : x
  2. Step 2: Convert to fraction form
    17,113.93/25,671.80 = 5,428.06/x
  3. Step 3: Cross multiply
    17,113.93x = 25,671.80 × 5,428.06
  4. Step 4: Simplify right side
    17,113.93x = 139,348,070.71
  5. Step 5: Solve for x
    x = 139,348,070.71/17,113.93
  6. Step 6: Final answer
    x = 8,142.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.