Home / 14,776.32-20,392.24-8,403.28

Finding the Fourth Proportional to 14,776.32, 20,392.24 and 8,403.28

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Solution

The fourth proportional to 14,776.32, 20,392.24 and 8,403.28 is: 11,597.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,776.32 : 20,392.24 = 8,403.28 : x
  2. Step 2: Convert to fraction form
    14,776.32/20,392.24 = 8,403.28/x
  3. Step 3: Cross multiply
    14,776.32x = 20,392.24 × 8,403.28
  4. Step 4: Simplify right side
    14,776.32x = 171,361,702.55
  5. Step 5: Solve for x
    x = 171,361,702.55/14,776.32
  6. Step 6: Final answer
    x = 11,597.05

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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.