Home / 10,648.40-15,972.60-5,464.40

Finding the Fourth Proportional to 10,648.40, 15,972.60 and 5,464.40

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Solution

The fourth proportional to 10,648.40, 15,972.60 and 5,464.40 is: 8,196.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,648.40 : 15,972.60 = 5,464.40 : x
  2. Step 2: Convert to fraction form
    10,648.40/15,972.60 = 5,464.40/x
  3. Step 3: Cross multiply
    10,648.40x = 15,972.60 × 5,464.40
  4. Step 4: Simplify right side
    10,648.40x = 87,280,675.44
  5. Step 5: Solve for x
    x = 87,280,675.44/10,648.40
  6. Step 6: Final answer
    x = 8,196.60

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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.