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Finding the Fourth Proportional to 9,309.07, 12,848.48 and 5,903.88

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Solution

The fourth proportional to 9,309.07, 12,848.48 and 5,903.88 is: 8,148.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,309.07 : 12,848.48 = 5,903.88 : x
  2. Step 2: Convert to fraction form
    9,309.07/12,848.48 = 5,903.88/x
  3. Step 3: Cross multiply
    9,309.07x = 12,848.48 × 5,903.88
  4. Step 4: Simplify right side
    9,309.07x = 75,855,884.10
  5. Step 5: Solve for x
    x = 75,855,884.10/9,309.07
  6. Step 6: Final answer
    x = 8,148.60

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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.