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Finding the Fourth Proportional to 9,365.80, 14,034.30 and 8,127.40

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Solution

The fourth proportional to 9,365.80, 14,034.30 and 8,127.40 is: 12,178.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,365.80 : 14,034.30 = 8,127.40 : x
  2. Step 2: Convert to fraction form
    9,365.80/14,034.30 = 8,127.40/x
  3. Step 3: Cross multiply
    9,365.80x = 14,034.30 × 8,127.40
  4. Step 4: Simplify right side
    9,365.80x = 114,062,369.82
  5. Step 5: Solve for x
    x = 114,062,369.82/9,365.80
  6. Step 6: Final answer
    x = 12,178.60

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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.