Home / 11,423.81-15,766.78-6,646.52

Finding the Fourth Proportional to 11,423.81, 15,766.78 and 6,646.52

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Solution

The fourth proportional to 11,423.81, 15,766.78 and 6,646.52 is: 9,173.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,423.81 : 15,766.78 = 6,646.52 : x
  2. Step 2: Convert to fraction form
    11,423.81/15,766.78 = 6,646.52/x
  3. Step 3: Cross multiply
    11,423.81x = 15,766.78 × 6,646.52
  4. Step 4: Simplify right side
    11,423.81x = 104,794,139.77
  5. Step 5: Solve for x
    x = 104,794,139.77/11,423.81
  6. Step 6: Final answer
    x = 9,173.31

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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.