Home / 18,810.36-28,219.03-9,456.98

Finding the Fourth Proportional to 18,810.36, 28,219.03 and 9,456.98

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Solution

The fourth proportional to 18,810.36, 28,219.03 and 9,456.98 is: 14,187.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,810.36 : 28,219.03 = 9,456.98 : x
  2. Step 2: Convert to fraction form
    18,810.36/28,219.03 = 9,456.98/x
  3. Step 3: Cross multiply
    18,810.36x = 28,219.03 × 9,456.98
  4. Step 4: Simplify right side
    18,810.36x = 266,866,637.59
  5. Step 5: Solve for x
    x = 266,866,637.59/18,810.36
  6. Step 6: Final answer
    x = 14,187.22

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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.