Home / 11,417.13-15,756.23-6,940.15

Finding the Fourth Proportional to 11,417.13, 15,756.23 and 6,940.15

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Solution

The fourth proportional to 11,417.13, 15,756.23 and 6,940.15 is: 9,577.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,417.13 : 15,756.23 = 6,940.15 : x
  2. Step 2: Convert to fraction form
    11,417.13/15,756.23 = 6,940.15/x
  3. Step 3: Cross multiply
    11,417.13x = 15,756.23 × 6,940.15
  4. Step 4: Simplify right side
    11,417.13x = 109,350,599.63
  5. Step 5: Solve for x
    x = 109,350,599.63/11,417.13
  6. Step 6: Final answer
    x = 9,577.77

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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.