Home / 9,879.45-13,632.95-5,403.11

Finding the Fourth Proportional to 9,879.45, 13,632.95 and 5,403.11

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Solution

The fourth proportional to 9,879.45, 13,632.95 and 5,403.11 is: 7,455.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,879.45 : 13,632.95 = 5,403.11 : x
  2. Step 2: Convert to fraction form
    9,879.45/13,632.95 = 5,403.11/x
  3. Step 3: Cross multiply
    9,879.45x = 13,632.95 × 5,403.11
  4. Step 4: Simplify right side
    9,879.45x = 73,660,233.29
  5. Step 5: Solve for x
    x = 73,660,233.29/9,879.45
  6. Step 6: Final answer
    x = 7,455.90

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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.