Home / 13,350.96-18,423.09-7,684.20

Finding the Fourth Proportional to 13,350.96, 18,423.09 and 7,684.20

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Solution

The fourth proportional to 13,350.96, 18,423.09 and 7,684.20 is: 10,603.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,350.96 : 18,423.09 = 7,684.20 : x
  2. Step 2: Convert to fraction form
    13,350.96/18,423.09 = 7,684.20/x
  3. Step 3: Cross multiply
    13,350.96x = 18,423.09 × 7,684.20
  4. Step 4: Simplify right side
    13,350.96x = 141,566,708.18
  5. Step 5: Solve for x
    x = 141,566,708.18/13,350.96
  6. Step 6: Final answer
    x = 10,603.49

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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.