Home / 14,397.92-19,869-8,110.40

Finding the Fourth Proportional to 14,397.92, 19,869 and 8,110.40

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Solution

The fourth proportional to 14,397.92, 19,869 and 8,110.40 is: 11,192.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,397.92 : 19,869 = 8,110.40 : x
  2. Step 2: Convert to fraction form
    14,397.92/19,869 = 8,110.40/x
  3. Step 3: Cross multiply
    14,397.92x = 19,869 × 8,110.40
  4. Step 4: Simplify right side
    14,397.92x = 161,145,537.60
  5. Step 5: Solve for x
    x = 161,145,537.60/14,397.92
  6. Step 6: Final answer
    x = 11,192.28

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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.