Home / 11,324.60-15,628.92-6,290.45

Finding the Fourth Proportional to 11,324.60, 15,628.92 and 6,290.45

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Solution

The fourth proportional to 11,324.60, 15,628.92 and 6,290.45 is: 8,681.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,324.60 : 15,628.92 = 6,290.45 : x
  2. Step 2: Convert to fraction form
    11,324.60/15,628.92 = 6,290.45/x
  3. Step 3: Cross multiply
    11,324.60x = 15,628.92 × 6,290.45
  4. Step 4: Simplify right side
    11,324.60x = 98,312,939.81
  5. Step 5: Solve for x
    x = 98,312,939.81/11,324.60
  6. Step 6: Final answer
    x = 8,681.36

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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.