Home / 7,428.74-10,253.45-4,775.78

Finding the Fourth Proportional to 7,428.74, 10,253.45 and 4,775.78

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Solution

The fourth proportional to 7,428.74, 10,253.45 and 4,775.78 is: 6,591.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,428.74 : 10,253.45 = 4,775.78 : x
  2. Step 2: Convert to fraction form
    7,428.74/10,253.45 = 4,775.78/x
  3. Step 3: Cross multiply
    7,428.74x = 10,253.45 × 4,775.78
  4. Step 4: Simplify right side
    7,428.74x = 48,968,259.01
  5. Step 5: Solve for x
    x = 48,968,259.01/7,428.74
  6. Step 6: Final answer
    x = 6,591.74

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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.