Home / 14,853.15-20,497.32-8,139.20

Finding the Fourth Proportional to 14,853.15, 20,497.32 and 8,139.20

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Solution

The fourth proportional to 14,853.15, 20,497.32 and 8,139.20 is: 11,232.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,853.15 : 20,497.32 = 8,139.20 : x
  2. Step 2: Convert to fraction form
    14,853.15/20,497.32 = 8,139.20/x
  3. Step 3: Cross multiply
    14,853.15x = 20,497.32 × 8,139.20
  4. Step 4: Simplify right side
    14,853.15x = 166,831,684.46
  5. Step 5: Solve for x
    x = 166,831,684.46/14,853.15
  6. Step 6: Final answer
    x = 11,232.07

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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.