Home / 11,470.42-15,829.35-6,690.23

Finding the Fourth Proportional to 11,470.42, 15,829.35 and 6,690.23

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Solution

The fourth proportional to 11,470.42, 15,829.35 and 6,690.23 is: 9,232.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,470.42 : 15,829.35 = 6,690.23 : x
  2. Step 2: Convert to fraction form
    11,470.42/15,829.35 = 6,690.23/x
  3. Step 3: Cross multiply
    11,470.42x = 15,829.35 × 6,690.23
  4. Step 4: Simplify right side
    11,470.42x = 105,901,992.25
  5. Step 5: Solve for x
    x = 105,901,992.25/11,470.42
  6. Step 6: Final answer
    x = 9,232.62

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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.