Home / 15,856.50-21,823.71-13,592.96

Finding the Fourth Proportional to 15,856.50, 21,823.71 and 13,592.96

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Solution

The fourth proportional to 15,856.50, 21,823.71 and 13,592.96 is: 18,708.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,856.50 : 21,823.71 = 13,592.96 : x
  2. Step 2: Convert to fraction form
    15,856.50/21,823.71 = 13,592.96/x
  3. Step 3: Cross multiply
    15,856.50x = 21,823.71 × 13,592.96
  4. Step 4: Simplify right side
    15,856.50x = 296,648,707.96
  5. Step 5: Solve for x
    x = 296,648,707.96/15,856.50
  6. Step 6: Final answer
    x = 18,708.33

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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.