Home / 13,407.93-18,500.94-7,439.58

Finding the Fourth Proportional to 13,407.93, 18,500.94 and 7,439.58

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Solution

The fourth proportional to 13,407.93, 18,500.94 and 7,439.58 is: 10,265.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,407.93 : 18,500.94 = 7,439.58 : x
  2. Step 2: Convert to fraction form
    13,407.93/18,500.94 = 7,439.58/x
  3. Step 3: Cross multiply
    13,407.93x = 18,500.94 × 7,439.58
  4. Step 4: Simplify right side
    13,407.93x = 137,639,223.21
  5. Step 5: Solve for x
    x = 137,639,223.21/13,407.93
  6. Step 6: Final answer
    x = 10,265.51

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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.