Home / 7,831.13-10,807.38-4,644.63

Finding the Fourth Proportional to 7,831.13, 10,807.38 and 4,644.63

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Solution

The fourth proportional to 7,831.13, 10,807.38 and 4,644.63 is: 6,409.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,831.13 : 10,807.38 = 4,644.63 : x
  2. Step 2: Convert to fraction form
    7,831.13/10,807.38 = 4,644.63/x
  3. Step 3: Cross multiply
    7,831.13x = 10,807.38 × 4,644.63
  4. Step 4: Simplify right side
    7,831.13x = 50,196,281.37
  5. Step 5: Solve for x
    x = 50,196,281.37/7,831.13
  6. Step 6: Final answer
    x = 6,409.84

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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.