Home / 16,390.24-22,618.92-9,316.60

Finding the Fourth Proportional to 16,390.24, 22,618.92 and 9,316.60

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Solution

The fourth proportional to 16,390.24, 22,618.92 and 9,316.60 is: 12,857.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,390.24 : 22,618.92 = 9,316.60 : x
  2. Step 2: Convert to fraction form
    16,390.24/22,618.92 = 9,316.60/x
  3. Step 3: Cross multiply
    16,390.24x = 22,618.92 × 9,316.60
  4. Step 4: Simplify right side
    16,390.24x = 210,731,430.07
  5. Step 5: Solve for x
    x = 210,731,430.07/16,390.24
  6. Step 6: Final answer
    x = 12,857.13

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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.