Home / 13,350.85-18,425.54-7,685.82

Finding the Fourth Proportional to 13,350.85, 18,425.54 and 7,685.82

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Solution

The fourth proportional to 13,350.85, 18,425.54 and 7,685.82 is: 10,607.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,350.85 : 18,425.54 = 7,685.82 : x
  2. Step 2: Convert to fraction form
    13,350.85/18,425.54 = 7,685.82/x
  3. Step 3: Cross multiply
    13,350.85x = 18,425.54 × 7,685.82
  4. Step 4: Simplify right side
    13,350.85x = 141,615,403.06
  5. Step 5: Solve for x
    x = 141,615,403.06/13,350.85
  6. Step 6: Final answer
    x = 10,607.22

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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.