Home / 13,931.51-19,214.28-12,249.41

Finding the Fourth Proportional to 13,931.51, 19,214.28 and 12,249.41

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Solution

The fourth proportional to 13,931.51, 19,214.28 and 12,249.41 is: 16,894.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,931.51 : 19,214.28 = 12,249.41 : x
  2. Step 2: Convert to fraction form
    13,931.51/19,214.28 = 12,249.41/x
  3. Step 3: Cross multiply
    13,931.51x = 19,214.28 × 12,249.41
  4. Step 4: Simplify right side
    13,931.51x = 235,363,497.50
  5. Step 5: Solve for x
    x = 235,363,497.50/13,931.51
  6. Step 6: Final answer
    x = 16,894.33

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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.