Home / 13,125.28-19,693.50-5,731.60

Finding the Fourth Proportional to 13,125.28, 19,693.50 and 5,731.60

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Solution

The fourth proportional to 13,125.28, 19,693.50 and 5,731.60 is: 8,599.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,125.28 : 19,693.50 = 5,731.60 : x
  2. Step 2: Convert to fraction form
    13,125.28/19,693.50 = 5,731.60/x
  3. Step 3: Cross multiply
    13,125.28x = 19,693.50 × 5,731.60
  4. Step 4: Simplify right side
    13,125.28x = 112,875,264.60
  5. Step 5: Solve for x
    x = 112,875,264.60/13,125.28
  6. Step 6: Final answer
    x = 8,599.84

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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.