Home / 10,977.30-16,472.70-4,740.30

Finding the Fourth Proportional to 10,977.30, 16,472.70 and 4,740.30

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Solution

The fourth proportional to 10,977.30, 16,472.70 and 4,740.30 is: 7,113.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,977.30 : 16,472.70 = 4,740.30 : x
  2. Step 2: Convert to fraction form
    10,977.30/16,472.70 = 4,740.30/x
  3. Step 3: Cross multiply
    10,977.30x = 16,472.70 × 4,740.30
  4. Step 4: Simplify right side
    10,977.30x = 78,085,539.81
  5. Step 5: Solve for x
    x = 78,085,539.81/10,977.30
  6. Step 6: Final answer
    x = 7,113.36

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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.