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Finding the Fourth Proportional to 12,999.56, 17,938.04 and 9,598.39

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Solution

The fourth proportional to 12,999.56, 17,938.04 and 9,598.39 is: 13,244.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,999.56 : 17,938.04 = 9,598.39 : x
  2. Step 2: Convert to fraction form
    12,999.56/17,938.04 = 9,598.39/x
  3. Step 3: Cross multiply
    12,999.56x = 17,938.04 × 9,598.39
  4. Step 4: Simplify right side
    12,999.56x = 172,176,210.92
  5. Step 5: Solve for x
    x = 172,176,210.92/12,999.56
  6. Step 6: Final answer
    x = 13,244.77

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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.