Home / 14,390.39-19,851.71-12,397.49

Finding the Fourth Proportional to 14,390.39, 19,851.71 and 12,397.49

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Solution

The fourth proportional to 14,390.39, 19,851.71 and 12,397.49 is: 17,102.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,390.39 : 19,851.71 = 12,397.49 : x
  2. Step 2: Convert to fraction form
    14,390.39/19,851.71 = 12,397.49/x
  3. Step 3: Cross multiply
    14,390.39x = 19,851.71 × 12,397.49
  4. Step 4: Simplify right side
    14,390.39x = 246,111,214.96
  5. Step 5: Solve for x
    x = 246,111,214.96/14,390.39
  6. Step 6: Final answer
    x = 17,102.48

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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.