Home / 10,538.96-15,787.20-5,258

Finding the Fourth Proportional to 10,538.96, 15,787.20 and 5,258

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Solution

The fourth proportional to 10,538.96, 15,787.20 and 5,258 is: 7,876.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,538.96 : 15,787.20 = 5,258 : x
  2. Step 2: Convert to fraction form
    10,538.96/15,787.20 = 5,258/x
  3. Step 3: Cross multiply
    10,538.96x = 15,787.20 × 5,258
  4. Step 4: Simplify right side
    10,538.96x = 83,009,097.60
  5. Step 5: Solve for x
    x = 83,009,097.60/10,538.96
  6. Step 6: Final answer
    x = 7,876.40

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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.