Home / 9,360.92-12,918.75-5,383.28

Finding the Fourth Proportional to 9,360.92, 12,918.75 and 5,383.28

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Solution

The fourth proportional to 9,360.92, 12,918.75 and 5,383.28 is: 7,429.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,360.92 : 12,918.75 = 5,383.28 : x
  2. Step 2: Convert to fraction form
    9,360.92/12,918.75 = 5,383.28/x
  3. Step 3: Cross multiply
    9,360.92x = 12,918.75 × 5,383.28
  4. Step 4: Simplify right side
    9,360.92x = 69,545,248.50
  5. Step 5: Solve for x
    x = 69,545,248.50/9,360.92
  6. Step 6: Final answer
    x = 7,429.32

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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.