Home / 15,641.92-21,586.13-8,567.89

Finding the Fourth Proportional to 15,641.92, 21,586.13 and 8,567.89

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Solution

The fourth proportional to 15,641.92, 21,586.13 and 8,567.89 is: 11,823.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,641.92 : 21,586.13 = 8,567.89 : x
  2. Step 2: Convert to fraction form
    15,641.92/21,586.13 = 8,567.89/x
  3. Step 3: Cross multiply
    15,641.92x = 21,586.13 × 8,567.89
  4. Step 4: Simplify right side
    15,641.92x = 184,947,587.37
  5. Step 5: Solve for x
    x = 184,947,587.37/15,641.92
  6. Step 6: Final answer
    x = 11,823.84

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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.