Home / 10,977.10-16,465.65-10,912.30

Finding the Fourth Proportional to 10,977.10, 16,465.65 and 10,912.30

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Solution

The fourth proportional to 10,977.10, 16,465.65 and 10,912.30 is: 16,368.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,977.10 : 16,465.65 = 10,912.30 : x
  2. Step 2: Convert to fraction form
    10,977.10/16,465.65 = 10,912.30/x
  3. Step 3: Cross multiply
    10,977.10x = 16,465.65 × 10,912.30
  4. Step 4: Simplify right side
    10,977.10x = 179,678,112.50
  5. Step 5: Solve for x
    x = 179,678,112.50/10,977.10
  6. Step 6: Final answer
    x = 16,368.45

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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.