Home / 9,267.19-12,789.63-5,288.90

Finding the Fourth Proportional to 9,267.19, 12,789.63 and 5,288.90

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Solution

The fourth proportional to 9,267.19, 12,789.63 and 5,288.90 is: 7,299.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,267.19 : 12,789.63 = 5,288.90 : x
  2. Step 2: Convert to fraction form
    9,267.19/12,789.63 = 5,288.90/x
  3. Step 3: Cross multiply
    9,267.19x = 12,789.63 × 5,288.90
  4. Step 4: Simplify right side
    9,267.19x = 67,642,983.71
  5. Step 5: Solve for x
    x = 67,642,983.71/9,267.19
  6. Step 6: Final answer
    x = 7,299.19

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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.