Home / 14,809.14-20,436.60-8,436.32

Finding the Fourth Proportional to 14,809.14, 20,436.60 and 8,436.32

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Solution

The fourth proportional to 14,809.14, 20,436.60 and 8,436.32 is: 11,642.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,809.14 : 20,436.60 = 8,436.32 : x
  2. Step 2: Convert to fraction form
    14,809.14/20,436.60 = 8,436.32/x
  3. Step 3: Cross multiply
    14,809.14x = 20,436.60 × 8,436.32
  4. Step 4: Simplify right side
    14,809.14x = 172,409,697.31
  5. Step 5: Solve for x
    x = 172,409,697.31/14,809.14
  6. Step 6: Final answer
    x = 11,642.11

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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.