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Finding the Fourth Proportional to 16,656.12, 22,985.40 and 9,102.48

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Solution

The fourth proportional to 16,656.12, 22,985.40 and 9,102.48 is: 12,561.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,656.12 : 22,985.40 = 9,102.48 : x
  2. Step 2: Convert to fraction form
    16,656.12/22,985.40 = 9,102.48/x
  3. Step 3: Cross multiply
    16,656.12x = 22,985.40 × 9,102.48
  4. Step 4: Simplify right side
    16,656.12x = 209,224,143.79
  5. Step 5: Solve for x
    x = 209,224,143.79/16,656.12
  6. Step 6: Final answer
    x = 12,561.40

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.