Home / 10,599.40-15,905.22-9,787.60

Finding the Fourth Proportional to 10,599.40, 15,905.22 and 9,787.60

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Solution

The fourth proportional to 10,599.40, 15,905.22 and 9,787.60 is: 14,687.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,599.40 : 15,905.22 = 9,787.60 : x
  2. Step 2: Convert to fraction form
    10,599.40/15,905.22 = 9,787.60/x
  3. Step 3: Cross multiply
    10,599.40x = 15,905.22 × 9,787.60
  4. Step 4: Simplify right side
    10,599.40x = 155,673,931.27
  5. Step 5: Solve for x
    x = 155,673,931.27/10,599.40
  6. Step 6: Final answer
    x = 14,687.05

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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.