Home / 7,913.28-11,875.72-3,533.60

Finding the Fourth Proportional to 7,913.28, 11,875.72 and 3,533.60

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Solution

The fourth proportional to 7,913.28, 11,875.72 and 3,533.60 is: 5,302.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,913.28 : 11,875.72 = 3,533.60 : x
  2. Step 2: Convert to fraction form
    7,913.28/11,875.72 = 3,533.60/x
  3. Step 3: Cross multiply
    7,913.28x = 11,875.72 × 3,533.60
  4. Step 4: Simplify right side
    7,913.28x = 41,964,044.19
  5. Step 5: Solve for x
    x = 41,964,044.19/7,913.28
  6. Step 6: Final answer
    x = 5,302.99

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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.