Home / 7,831.48-10,807.95-5,174.23

Finding the Fourth Proportional to 7,831.48, 10,807.95 and 5,174.23

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Solution

The fourth proportional to 7,831.48, 10,807.95 and 5,174.23 is: 7,140.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,831.48 : 10,807.95 = 5,174.23 : x
  2. Step 2: Convert to fraction form
    7,831.48/10,807.95 = 5,174.23/x
  3. Step 3: Cross multiply
    7,831.48x = 10,807.95 × 5,174.23
  4. Step 4: Simplify right side
    7,831.48x = 55,922,819.13
  5. Step 5: Solve for x
    x = 55,922,819.13/7,831.48
  6. Step 6: Final answer
    x = 7,140.77

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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.