Home / 11,125.78-16,688.59-4,465.28

Finding the Fourth Proportional to 11,125.78, 16,688.59 and 4,465.28

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Solution

The fourth proportional to 11,125.78, 16,688.59 and 4,465.28 is: 6,697.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,125.78 : 16,688.59 = 4,465.28 : x
  2. Step 2: Convert to fraction form
    11,125.78/16,688.59 = 4,465.28/x
  3. Step 3: Cross multiply
    11,125.78x = 16,688.59 × 4,465.28
  4. Step 4: Simplify right side
    11,125.78x = 74,519,227.16
  5. Step 5: Solve for x
    x = 74,519,227.16/11,125.78
  6. Step 6: Final answer
    x = 6,697.89

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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.