Home / 13,310.47-18,369.48-7,342.66

Finding the Fourth Proportional to 13,310.47, 18,369.48 and 7,342.66

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Solution

The fourth proportional to 13,310.47, 18,369.48 and 7,342.66 is: 10,133.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310.47 : 18,369.48 = 7,342.66 : x
  2. Step 2: Convert to fraction form
    13,310.47/18,369.48 = 7,342.66/x
  3. Step 3: Cross multiply
    13,310.47x = 18,369.48 × 7,342.66
  4. Step 4: Simplify right side
    13,310.47x = 134,880,846.02
  5. Step 5: Solve for x
    x = 134,880,846.02/13,310.47
  6. Step 6: Final answer
    x = 10,133.44

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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.