Home / 15,814.36-21,831.06-11,280.52

Finding the Fourth Proportional to 15,814.36, 21,831.06 and 11,280.52

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Solution

The fourth proportional to 15,814.36, 21,831.06 and 11,280.52 is: 15,572.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,814.36 : 21,831.06 = 11,280.52 : x
  2. Step 2: Convert to fraction form
    15,814.36/21,831.06 = 11,280.52/x
  3. Step 3: Cross multiply
    15,814.36x = 21,831.06 × 11,280.52
  4. Step 4: Simplify right side
    15,814.36x = 246,265,708.95
  5. Step 5: Solve for x
    x = 246,265,708.95/15,814.36
  6. Step 6: Final answer
    x = 15,572.28

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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.