Home / 11,888.15-16,398.45-7,637.76

Finding the Fourth Proportional to 11,888.15, 16,398.45 and 7,637.76

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Solution

The fourth proportional to 11,888.15, 16,398.45 and 7,637.76 is: 10,535.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,888.15 : 16,398.45 = 7,637.76 : x
  2. Step 2: Convert to fraction form
    11,888.15/16,398.45 = 7,637.76/x
  3. Step 3: Cross multiply
    11,888.15x = 16,398.45 × 7,637.76
  4. Step 4: Simplify right side
    11,888.15x = 125,247,425.47
  5. Step 5: Solve for x
    x = 125,247,425.47/11,888.15
  6. Step 6: Final answer
    x = 10,535.49

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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.