Home / 11,508.51-15,881.63-6,472.76

Finding the Fourth Proportional to 11,508.51, 15,881.63 and 6,472.76

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Solution

The fourth proportional to 11,508.51, 15,881.63 and 6,472.76 is: 8,932.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,508.51 : 15,881.63 = 6,472.76 : x
  2. Step 2: Convert to fraction form
    11,508.51/15,881.63 = 6,472.76/x
  3. Step 3: Cross multiply
    11,508.51x = 15,881.63 × 6,472.76
  4. Step 4: Simplify right side
    11,508.51x = 102,797,867.63
  5. Step 5: Solve for x
    x = 102,797,867.63/11,508.51
  6. Step 6: Final answer
    x = 8,932.34

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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.