Home / 11,352.61-15,667.88-6,507.79

Finding the Fourth Proportional to 11,352.61, 15,667.88 and 6,507.79

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Solution

The fourth proportional to 11,352.61, 15,667.88 and 6,507.79 is: 8,981.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,352.61 : 15,667.88 = 6,507.79 : x
  2. Step 2: Convert to fraction form
    11,352.61/15,667.88 = 6,507.79/x
  3. Step 3: Cross multiply
    11,352.61x = 15,667.88 × 6,507.79
  4. Step 4: Simplify right side
    11,352.61x = 101,963,289.05
  5. Step 5: Solve for x
    x = 101,963,289.05/11,352.61
  6. Step 6: Final answer
    x = 8,981.48

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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.