Home / 15,887.70-21,924.27-8,814.06

Finding the Fourth Proportional to 15,887.70, 21,924.27 and 8,814.06

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Solution

The fourth proportional to 15,887.70, 21,924.27 and 8,814.06 is: 12,162.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,887.70 : 21,924.27 = 8,814.06 : x
  2. Step 2: Convert to fraction form
    15,887.70/21,924.27 = 8,814.06/x
  3. Step 3: Cross multiply
    15,887.70x = 21,924.27 × 8,814.06
  4. Step 4: Simplify right side
    15,887.70x = 193,241,831.24
  5. Step 5: Solve for x
    x = 193,241,831.24/15,887.70
  6. Step 6: Final answer
    x = 12,162.98

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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.