Home / 12,347.24-17,047.14-11,018.66

Finding the Fourth Proportional to 12,347.24, 17,047.14 and 11,018.66

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Solution

The fourth proportional to 12,347.24, 17,047.14 and 11,018.66 is: 15,212.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,347.24 : 17,047.14 = 11,018.66 : x
  2. Step 2: Convert to fraction form
    12,347.24/17,047.14 = 11,018.66/x
  3. Step 3: Cross multiply
    12,347.24x = 17,047.14 × 11,018.66
  4. Step 4: Simplify right side
    12,347.24x = 187,836,639.63
  5. Step 5: Solve for x
    x = 187,836,639.63/12,347.24
  6. Step 6: Final answer
    x = 15,212.84

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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.