Home / 14,390.51-19,715.07-13,851.19

Finding the Fourth Proportional to 14,390.51, 19,715.07 and 13,851.19

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Solution

The fourth proportional to 14,390.51, 19,715.07 and 13,851.19 is: 18,976.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,390.51 : 19,715.07 = 13,851.19 : x
  2. Step 2: Convert to fraction form
    14,390.51/19,715.07 = 13,851.19/x
  3. Step 3: Cross multiply
    14,390.51x = 19,715.07 × 13,851.19
  4. Step 4: Simplify right side
    14,390.51x = 273,077,180.43
  5. Step 5: Solve for x
    x = 273,077,180.43/14,390.51
  6. Step 6: Final answer
    x = 18,976.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.