Home / 12,901.41-17,688-12,668.13

Finding the Fourth Proportional to 12,901.41, 17,688 and 12,668.13

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Solution

The fourth proportional to 12,901.41, 17,688 and 12,668.13 is: 17,368.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,901.41 : 17,688 = 12,668.13 : x
  2. Step 2: Convert to fraction form
    12,901.41/17,688 = 12,668.13/x
  3. Step 3: Cross multiply
    12,901.41x = 17,688 × 12,668.13
  4. Step 4: Simplify right side
    12,901.41x = 224,073,883.44
  5. Step 5: Solve for x
    x = 224,073,883.44/12,901.41
  6. Step 6: Final answer
    x = 17,368.17

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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.