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Finding the Fourth Proportional to 14,393, 21,580.28 and 9,938.19

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Solution

The fourth proportional to 14,393, 21,580.28 and 9,938.19 is: 14,900.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,393 : 21,580.28 = 9,938.19 : x
  2. Step 2: Convert to fraction form
    14,393/21,580.28 = 9,938.19/x
  3. Step 3: Cross multiply
    14,393x = 21,580.28 × 9,938.19
  4. Step 4: Simplify right side
    14,393x = 214,468,922.89
  5. Step 5: Solve for x
    x = 214,468,922.89/14,393
  6. Step 6: Final answer
    x = 14,900.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.