Home / 9,285.04-12,811.68-5,305.36

Finding the Fourth Proportional to 9,285.04, 12,811.68 and 5,305.36

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Solution

The fourth proportional to 9,285.04, 12,811.68 and 5,305.36 is: 7,320.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,285.04 : 12,811.68 = 5,305.36 : x
  2. Step 2: Convert to fraction form
    9,285.04/12,811.68 = 5,305.36/x
  3. Step 3: Cross multiply
    9,285.04x = 12,811.68 × 5,305.36
  4. Step 4: Simplify right side
    9,285.04x = 67,970,574.60
  5. Step 5: Solve for x
    x = 67,970,574.60/9,285.04
  6. Step 6: Final answer
    x = 7,320.44

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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.