Home / 10,571.58-15,831.45-6,664.14

Finding the Fourth Proportional to 10,571.58, 15,831.45 and 6,664.14

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Solution

The fourth proportional to 10,571.58, 15,831.45 and 6,664.14 is: 9,979.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,571.58 : 15,831.45 = 6,664.14 : x
  2. Step 2: Convert to fraction form
    10,571.58/15,831.45 = 6,664.14/x
  3. Step 3: Cross multiply
    10,571.58x = 15,831.45 × 6,664.14
  4. Step 4: Simplify right side
    10,571.58x = 105,502,999.20
  5. Step 5: Solve for x
    x = 105,502,999.20/10,571.58
  6. Step 6: Final answer
    x = 9,979.87

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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.