Home / 10,995.89-15,174.34-6,280.07

Finding the Fourth Proportional to 10,995.89, 15,174.34 and 6,280.07

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Solution

The fourth proportional to 10,995.89, 15,174.34 and 6,280.07 is: 8,666.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,995.89 : 15,174.34 = 6,280.07 : x
  2. Step 2: Convert to fraction form
    10,995.89/15,174.34 = 6,280.07/x
  3. Step 3: Cross multiply
    10,995.89x = 15,174.34 × 6,280.07
  4. Step 4: Simplify right side
    10,995.89x = 95,295,825.83
  5. Step 5: Solve for x
    x = 95,295,825.83/10,995.89
  6. Step 6: Final answer
    x = 8,666.50

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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.