Home / 18,900.50-28,297.43-9,995.65

Finding the Fourth Proportional to 18,900.50, 28,297.43 and 9,995.65

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Solution

The fourth proportional to 18,900.50, 28,297.43 and 9,995.65 is: 14,965.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,900.50 : 28,297.43 = 9,995.65 : x
  2. Step 2: Convert to fraction form
    18,900.50/28,297.43 = 9,995.65/x
  3. Step 3: Cross multiply
    18,900.50x = 28,297.43 × 9,995.65
  4. Step 4: Simplify right side
    18,900.50x = 282,851,254.00
  5. Step 5: Solve for x
    x = 282,851,254.00/18,900.50
  6. Step 6: Final answer
    x = 14,965.28

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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.