Home / 18,890.88-26,068.48-10,505.60

Finding the Fourth Proportional to 18,890.88, 26,068.48 and 10,505.60

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Solution

The fourth proportional to 18,890.88, 26,068.48 and 10,505.60 is: 14,497.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,890.88 : 26,068.48 = 10,505.60 : x
  2. Step 2: Convert to fraction form
    18,890.88/26,068.48 = 10,505.60/x
  3. Step 3: Cross multiply
    18,890.88x = 26,068.48 × 10,505.60
  4. Step 4: Simplify right side
    18,890.88x = 273,865,023.49
  5. Step 5: Solve for x
    x = 273,865,023.49/18,890.88
  6. Step 6: Final answer
    x = 14,497.21

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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.