Home / 10,309.78-15,426.37-6,152.05

Finding the Fourth Proportional to 10,309.78, 15,426.37 and 6,152.05

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Solution

The fourth proportional to 10,309.78, 15,426.37 and 6,152.05 is: 9,205.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,309.78 : 15,426.37 = 6,152.05 : x
  2. Step 2: Convert to fraction form
    10,309.78/15,426.37 = 6,152.05/x
  3. Step 3: Cross multiply
    10,309.78x = 15,426.37 × 6,152.05
  4. Step 4: Simplify right side
    10,309.78x = 94,903,799.56
  5. Step 5: Solve for x
    x = 94,903,799.56/10,309.78
  6. Step 6: Final answer
    x = 9,205.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.