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Finding the Fourth Proportional to 9,326.52, 12,870.81 and 5,077.89

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Solution

The fourth proportional to 9,326.52, 12,870.81 and 5,077.89 is: 7,007.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,326.52 : 12,870.81 = 5,077.89 : x
  2. Step 2: Convert to fraction form
    9,326.52/12,870.81 = 5,077.89/x
  3. Step 3: Cross multiply
    9,326.52x = 12,870.81 × 5,077.89
  4. Step 4: Simplify right side
    9,326.52x = 65,356,557.39
  5. Step 5: Solve for x
    x = 65,356,557.39/9,326.52
  6. Step 6: Final answer
    x = 7,007.60

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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.