Home / 14,680.80-20,252.58-8,389.50

Finding the Fourth Proportional to 14,680.80, 20,252.58 and 8,389.50

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Solution

The fourth proportional to 14,680.80, 20,252.58 and 8,389.50 is: 11,573.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,680.80 : 20,252.58 = 8,389.50 : x
  2. Step 2: Convert to fraction form
    14,680.80/20,252.58 = 8,389.50/x
  3. Step 3: Cross multiply
    14,680.80x = 20,252.58 × 8,389.50
  4. Step 4: Simplify right side
    14,680.80x = 169,909,019.91
  5. Step 5: Solve for x
    x = 169,909,019.91/14,680.80
  6. Step 6: Final answer
    x = 11,573.55

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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.