Home / 9,267.81-12,789.36-5,288.55

Finding the Fourth Proportional to 9,267.81, 12,789.36 and 5,288.55

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Solution

The fourth proportional to 9,267.81, 12,789.36 and 5,288.55 is: 7,298.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,267.81 : 12,789.36 = 5,288.55 : x
  2. Step 2: Convert to fraction form
    9,267.81/12,789.36 = 5,288.55/x
  3. Step 3: Cross multiply
    9,267.81x = 12,789.36 × 5,288.55
  4. Step 4: Simplify right side
    9,267.81x = 67,637,169.83
  5. Step 5: Solve for x
    x = 67,637,169.83/9,267.81
  6. Step 6: Final answer
    x = 7,298.07

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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.