Home / 7,428.84-10,253.45-4,911.30

Finding the Fourth Proportional to 7,428.84, 10,253.45 and 4,911.30

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Solution

The fourth proportional to 7,428.84, 10,253.45 and 4,911.30 is: 6,778.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,428.84 : 10,253.45 = 4,911.30 : x
  2. Step 2: Convert to fraction form
    7,428.84/10,253.45 = 4,911.30/x
  3. Step 3: Cross multiply
    7,428.84x = 10,253.45 × 4,911.30
  4. Step 4: Simplify right side
    7,428.84x = 50,357,801.30
  5. Step 5: Solve for x
    x = 50,357,801.30/7,428.84
  6. Step 6: Final answer
    x = 6,778.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.