Home / 13,400.67-19,982.93-12,465.66

Finding the Fourth Proportional to 13,400.67, 19,982.93 and 12,465.66

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Solution

The fourth proportional to 13,400.67, 19,982.93 and 12,465.66 is: 18,588.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,400.67 : 19,982.93 = 12,465.66 : x
  2. Step 2: Convert to fraction form
    13,400.67/19,982.93 = 12,465.66/x
  3. Step 3: Cross multiply
    13,400.67x = 19,982.93 × 12,465.66
  4. Step 4: Simplify right side
    13,400.67x = 249,100,348.86
  5. Step 5: Solve for x
    x = 249,100,348.86/13,400.67
  6. Step 6: Final answer
    x = 18,588.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.