Home / 14,548.05-21,831.63-7,978.85

Finding the Fourth Proportional to 14,548.05, 21,831.63 and 7,978.85

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Solution

The fourth proportional to 14,548.05, 21,831.63 and 7,978.85 is: 11,973.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,548.05 : 21,831.63 = 7,978.85 : x
  2. Step 2: Convert to fraction form
    14,548.05/21,831.63 = 7,978.85/x
  3. Step 3: Cross multiply
    14,548.05x = 21,831.63 × 7,978.85
  4. Step 4: Simplify right side
    14,548.05x = 174,191,191.87
  5. Step 5: Solve for x
    x = 174,191,191.87/14,548.05
  6. Step 6: Final answer
    x = 11,973.51

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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.