Home / 15,890.74-23,861.56-13,111.36

Finding the Fourth Proportional to 15,890.74, 23,861.56 and 13,111.36

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Solution

The fourth proportional to 15,890.74, 23,861.56 and 13,111.36 is: 19,688.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,890.74 : 23,861.56 = 13,111.36 : x
  2. Step 2: Convert to fraction form
    15,890.74/23,861.56 = 13,111.36/x
  3. Step 3: Cross multiply
    15,890.74x = 23,861.56 × 13,111.36
  4. Step 4: Simplify right side
    15,890.74x = 312,857,503.32
  5. Step 5: Solve for x
    x = 312,857,503.32/15,890.74
  6. Step 6: Final answer
    x = 19,688.04

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1.5x scale

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.