Home / 10,968.87-15,138.99-6,495.11

Finding the Fourth Proportional to 10,968.87, 15,138.99 and 6,495.11

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Solution

The fourth proportional to 10,968.87, 15,138.99 and 6,495.11 is: 8,964.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,968.87 : 15,138.99 = 6,495.11 : x
  2. Step 2: Convert to fraction form
    10,968.87/15,138.99 = 6,495.11/x
  3. Step 3: Cross multiply
    10,968.87x = 15,138.99 × 6,495.11
  4. Step 4: Simplify right side
    10,968.87x = 98,329,329.64
  5. Step 5: Solve for x
    x = 98,329,329.64/10,968.87
  6. Step 6: Final answer
    x = 8,964.40

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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.