Home / 15,769.92-21,762.64-9,055.45

Finding the Fourth Proportional to 15,769.92, 21,762.64 and 9,055.45

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Solution

The fourth proportional to 15,769.92, 21,762.64 and 9,055.45 is: 12,496.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,769.92 : 21,762.64 = 9,055.45 : x
  2. Step 2: Convert to fraction form
    15,769.92/21,762.64 = 9,055.45/x
  3. Step 3: Cross multiply
    15,769.92x = 21,762.64 × 9,055.45
  4. Step 4: Simplify right side
    15,769.92x = 197,070,498.39
  5. Step 5: Solve for x
    x = 197,070,498.39/15,769.92
  6. Step 6: Final answer
    x = 12,496.61

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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.