Home / 15,641.45-21,585.27-8,567.87

Finding the Fourth Proportional to 15,641.45, 21,585.27 and 8,567.87

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Solution

The fourth proportional to 15,641.45, 21,585.27 and 8,567.87 is: 11,823.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,641.45 : 21,585.27 = 8,567.87 : x
  2. Step 2: Convert to fraction form
    15,641.45/21,585.27 = 8,567.87/x
  3. Step 3: Cross multiply
    15,641.45x = 21,585.27 × 8,567.87
  4. Step 4: Simplify right side
    15,641.45x = 184,939,787.27
  5. Step 5: Solve for x
    x = 184,939,787.27/15,641.45
  6. Step 6: Final answer
    x = 11,823.70

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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.