Home / 6,911.10-10,378.80-6,692.40

Finding the Fourth Proportional to 6,911.10, 10,378.80 and 6,692.40

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Solution

The fourth proportional to 6,911.10, 10,378.80 and 6,692.40 is: 10,050.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,911.10 : 10,378.80 = 6,692.40 : x
  2. Step 2: Convert to fraction form
    6,911.10/10,378.80 = 6,692.40/x
  3. Step 3: Cross multiply
    6,911.10x = 10,378.80 × 6,692.40
  4. Step 4: Simplify right side
    6,911.10x = 69,459,081.12
  5. Step 5: Solve for x
    x = 69,459,081.12/6,911.10
  6. Step 6: Final answer
    x = 10,050.37

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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.