Home / 10,905.93-15,045.62-6,711.75

Finding the Fourth Proportional to 10,905.93, 15,045.62 and 6,711.75

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Solution

The fourth proportional to 10,905.93, 15,045.62 and 6,711.75 is: 9,259.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,905.93 : 15,045.62 = 6,711.75 : x
  2. Step 2: Convert to fraction form
    10,905.93/15,045.62 = 6,711.75/x
  3. Step 3: Cross multiply
    10,905.93x = 15,045.62 × 6,711.75
  4. Step 4: Simplify right side
    10,905.93x = 100,982,406.48
  5. Step 5: Solve for x
    x = 100,982,406.48/10,905.93
  6. Step 6: Final answer
    x = 9,259.40

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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.