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Finding the Fourth Proportional to 18,880.40, 26,053.08 and 14,407.04

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Solution

The fourth proportional to 18,880.40, 26,053.08 and 14,407.04 is: 19,880.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,880.40 : 26,053.08 = 14,407.04 : x
  2. Step 2: Convert to fraction form
    18,880.40/26,053.08 = 14,407.04/x
  3. Step 3: Cross multiply
    18,880.40x = 26,053.08 × 14,407.04
  4. Step 4: Simplify right side
    18,880.40x = 375,347,765.68
  5. Step 5: Solve for x
    x = 375,347,765.68/18,880.40
  6. Step 6: Final answer
    x = 19,880.29

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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.