Home / 13,434.75-20,053.50-12,445.13

Finding the Fourth Proportional to 13,434.75, 20,053.50 and 12,445.13

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Solution

The fourth proportional to 13,434.75, 20,053.50 and 12,445.13 is: 18,576.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,434.75 : 20,053.50 = 12,445.13 : x
  2. Step 2: Convert to fraction form
    13,434.75/20,053.50 = 12,445.13/x
  3. Step 3: Cross multiply
    13,434.75x = 20,053.50 × 12,445.13
  4. Step 4: Simplify right side
    13,434.75x = 249,568,314.19
  5. Step 5: Solve for x
    x = 249,568,314.19/13,434.75
  6. Step 6: Final answer
    x = 18,576.33

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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.