Home / 10,288.18-15,420.66-6,395.32

Finding the Fourth Proportional to 10,288.18, 15,420.66 and 6,395.32

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Solution

The fourth proportional to 10,288.18, 15,420.66 and 6,395.32 is: 9,585.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,288.18 : 15,420.66 = 6,395.32 : x
  2. Step 2: Convert to fraction form
    10,288.18/15,420.66 = 6,395.32/x
  3. Step 3: Cross multiply
    10,288.18x = 15,420.66 × 6,395.32
  4. Step 4: Simplify right side
    10,288.18x = 98,620,055.31
  5. Step 5: Solve for x
    x = 98,620,055.31/10,288.18
  6. Step 6: Final answer
    x = 9,585.76

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1.5x scale

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.