Home / 14,356.40-19,811.88-8,388.32

Finding the Fourth Proportional to 14,356.40, 19,811.88 and 8,388.32

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Solution

The fourth proportional to 14,356.40, 19,811.88 and 8,388.32 is: 11,575.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,356.40 : 19,811.88 = 8,388.32 : x
  2. Step 2: Convert to fraction form
    14,356.40/19,811.88 = 8,388.32/x
  3. Step 3: Cross multiply
    14,356.40x = 19,811.88 × 8,388.32
  4. Step 4: Simplify right side
    14,356.40x = 166,188,389.24
  5. Step 5: Solve for x
    x = 166,188,389.24/14,356.40
  6. Step 6: Final answer
    x = 11,575.91

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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.