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Finding the Fourth Proportional to 9,487.40, 14,231.10 and 9,341.60

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Solution

The fourth proportional to 9,487.40, 14,231.10 and 9,341.60 is: 14,012.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,487.40 : 14,231.10 = 9,341.60 : x
  2. Step 2: Convert to fraction form
    9,487.40/14,231.10 = 9,341.60/x
  3. Step 3: Cross multiply
    9,487.40x = 14,231.10 × 9,341.60
  4. Step 4: Simplify right side
    9,487.40x = 132,941,243.76
  5. Step 5: Solve for x
    x = 132,941,243.76/9,487.40
  6. Step 6: Final answer
    x = 14,012.40

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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.