Home / 14,831.51-20,460.57-8,540.24

Finding the Fourth Proportional to 14,831.51, 20,460.57 and 8,540.24

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Solution

The fourth proportional to 14,831.51, 20,460.57 and 8,540.24 is: 11,781.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,831.51 : 20,460.57 = 8,540.24 : x
  2. Step 2: Convert to fraction form
    14,831.51/20,460.57 = 8,540.24/x
  3. Step 3: Cross multiply
    14,831.51x = 20,460.57 × 8,540.24
  4. Step 4: Simplify right side
    14,831.51x = 174,738,178.34
  5. Step 5: Solve for x
    x = 174,738,178.34/14,831.51
  6. Step 6: Final answer
    x = 11,781.55

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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.