Home / 10,919.18-15,069.01-6,140.63

Finding the Fourth Proportional to 10,919.18, 15,069.01 and 6,140.63

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Solution

The fourth proportional to 10,919.18, 15,069.01 and 6,140.63 is: 8,474.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,919.18 : 15,069.01 = 6,140.63 : x
  2. Step 2: Convert to fraction form
    10,919.18/15,069.01 = 6,140.63/x
  3. Step 3: Cross multiply
    10,919.18x = 15,069.01 × 6,140.63
  4. Step 4: Simplify right side
    10,919.18x = 92,533,214.88
  5. Step 5: Solve for x
    x = 92,533,214.88/10,919.18
  6. Step 6: Final answer
    x = 8,474.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.