Home / 16,389.50-22,619.44-9,316.98

Finding the Fourth Proportional to 16,389.50, 22,619.44 and 9,316.98

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Solution

The fourth proportional to 16,389.50, 22,619.44 and 9,316.98 is: 12,858.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,389.50 : 22,619.44 = 9,316.98 : x
  2. Step 2: Convert to fraction form
    16,389.50/22,619.44 = 9,316.98/x
  3. Step 3: Cross multiply
    16,389.50x = 22,619.44 × 9,316.98
  4. Step 4: Simplify right side
    16,389.50x = 210,744,870.09
  5. Step 5: Solve for x
    x = 210,744,870.09/16,389.50
  6. Step 6: Final answer
    x = 12,858.53

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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.