Home / 14,695.20-20,281.32-8,406.36

Finding the Fourth Proportional to 14,695.20, 20,281.32 and 8,406.36

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Solution

The fourth proportional to 14,695.20, 20,281.32 and 8,406.36 is: 11,601.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,695.20 : 20,281.32 = 8,406.36 : x
  2. Step 2: Convert to fraction form
    14,695.20/20,281.32 = 8,406.36/x
  3. Step 3: Cross multiply
    14,695.20x = 20,281.32 × 8,406.36
  4. Step 4: Simplify right side
    14,695.20x = 170,492,077.20
  5. Step 5: Solve for x
    x = 170,492,077.20/14,695.20
  6. Step 6: Final answer
    x = 11,601.89

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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.