Home / 12,910.15-19,433.28-11,007.46

Finding the Fourth Proportional to 12,910.15, 19,433.28 and 11,007.46

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Solution

The fourth proportional to 12,910.15, 19,433.28 and 11,007.46 is: 16,569.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,910.15 : 19,433.28 = 11,007.46 : x
  2. Step 2: Convert to fraction form
    12,910.15/19,433.28 = 11,007.46/x
  3. Step 3: Cross multiply
    12,910.15x = 19,433.28 × 11,007.46
  4. Step 4: Simplify right side
    12,910.15x = 213,911,117.84
  5. Step 5: Solve for x
    x = 213,911,117.84/12,910.15
  6. Step 6: Final answer
    x = 16,569.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.