Home / 14,175.80-21,263.70-8,538.20

Finding the Fourth Proportional to 14,175.80, 21,263.70 and 8,538.20

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Solution

The fourth proportional to 14,175.80, 21,263.70 and 8,538.20 is: 12,807.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,175.80 : 21,263.70 = 8,538.20 : x
  2. Step 2: Convert to fraction form
    14,175.80/21,263.70 = 8,538.20/x
  3. Step 3: Cross multiply
    14,175.80x = 21,263.70 × 8,538.20
  4. Step 4: Simplify right side
    14,175.80x = 181,553,723.34
  5. Step 5: Solve for x
    x = 181,553,723.34/14,175.80
  6. Step 6: Final answer
    x = 12,807.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.