Home / 10,511.81-15,775.54-4,966.86

Finding the Fourth Proportional to 10,511.81, 15,775.54 and 4,966.86

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Solution

The fourth proportional to 10,511.81, 15,775.54 and 4,966.86 is: 7,453.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,511.81 : 15,775.54 = 4,966.86 : x
  2. Step 2: Convert to fraction form
    10,511.81/15,775.54 = 4,966.86/x
  3. Step 3: Cross multiply
    10,511.81x = 15,775.54 × 4,966.86
  4. Step 4: Simplify right side
    10,511.81x = 78,354,898.60
  5. Step 5: Solve for x
    x = 78,354,898.60/10,511.81
  6. Step 6: Final answer
    x = 7,453.99

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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.