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Finding the Fourth Proportional to 12,365.81, 17,088.11 and 9,376.10

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Solution

The fourth proportional to 12,365.81, 17,088.11 and 9,376.10 is: 12,956.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,365.81 : 17,088.11 = 9,376.10 : x
  2. Step 2: Convert to fraction form
    12,365.81/17,088.11 = 9,376.10/x
  3. Step 3: Cross multiply
    12,365.81x = 17,088.11 × 9,376.10
  4. Step 4: Simplify right side
    12,365.81x = 160,219,894.33
  5. Step 5: Solve for x
    x = 160,219,894.33/12,365.81
  6. Step 6: Final answer
    x = 12,956.68

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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.