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Finding the Fourth Proportional to 9,386.08, 12,951.48 and 7,975.48

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Solution

The fourth proportional to 9,386.08, 12,951.48 and 7,975.48 is: 11,005.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,386.08 : 12,951.48 = 7,975.48 : x
  2. Step 2: Convert to fraction form
    9,386.08/12,951.48 = 7,975.48/x
  3. Step 3: Cross multiply
    9,386.08x = 12,951.48 × 7,975.48
  4. Step 4: Simplify right side
    9,386.08x = 103,294,269.71
  5. Step 5: Solve for x
    x = 103,294,269.71/9,386.08
  6. Step 6: Final answer
    x = 11,005.05

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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.