Home / 11,886.24-16,402.56-6,581.28

Finding the Fourth Proportional to 11,886.24, 16,402.56 and 6,581.28

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Solution

The fourth proportional to 11,886.24, 16,402.56 and 6,581.28 is: 9,081.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,886.24 : 16,402.56 = 6,581.28 : x
  2. Step 2: Convert to fraction form
    11,886.24/16,402.56 = 6,581.28/x
  3. Step 3: Cross multiply
    11,886.24x = 16,402.56 × 6,581.28
  4. Step 4: Simplify right side
    11,886.24x = 107,949,840.08
  5. Step 5: Solve for x
    x = 107,949,840.08/11,886.24
  6. Step 6: Final answer
    x = 9,081.92

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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.