Home / 11,289.33-15,580.08-6,812.84

Finding the Fourth Proportional to 11,289.33, 15,580.08 and 6,812.84

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Solution

The fourth proportional to 11,289.33, 15,580.08 and 6,812.84 is: 9,402.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,289.33 : 15,580.08 = 6,812.84 : x
  2. Step 2: Convert to fraction form
    11,289.33/15,580.08 = 6,812.84/x
  3. Step 3: Cross multiply
    11,289.33x = 15,580.08 × 6,812.84
  4. Step 4: Simplify right side
    11,289.33x = 106,144,631.18
  5. Step 5: Solve for x
    x = 106,144,631.18/11,289.33
  6. Step 6: Final answer
    x = 9,402.21

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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.