Home / 10,552.68-15,831.36-3,978.93

Finding the Fourth Proportional to 10,552.68, 15,831.36 and 3,978.93

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Solution

The fourth proportional to 10,552.68, 15,831.36 and 3,978.93 is: 5,969.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,552.68 : 15,831.36 = 3,978.93 : x
  2. Step 2: Convert to fraction form
    10,552.68/15,831.36 = 3,978.93/x
  3. Step 3: Cross multiply
    10,552.68x = 15,831.36 × 3,978.93
  4. Step 4: Simplify right side
    10,552.68x = 62,991,873.24
  5. Step 5: Solve for x
    x = 62,991,873.24/10,552.68
  6. Step 6: Final answer
    x = 5,969.28

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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.