Home / 10,686.74-16,038.81-7,569.79

Finding the Fourth Proportional to 10,686.74, 16,038.81 and 7,569.79

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Solution

The fourth proportional to 10,686.74, 16,038.81 and 7,569.79 is: 11,360.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,686.74 : 16,038.81 = 7,569.79 : x
  2. Step 2: Convert to fraction form
    10,686.74/16,038.81 = 7,569.79/x
  3. Step 3: Cross multiply
    10,686.74x = 16,038.81 × 7,569.79
  4. Step 4: Simplify right side
    10,686.74x = 121,410,383.45
  5. Step 5: Solve for x
    x = 121,410,383.45/10,686.74
  6. Step 6: Final answer
    x = 11,360.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.