Home / 11,317.52-15,618.12-6,281.60

Finding the Fourth Proportional to 11,317.52, 15,618.12 and 6,281.60

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Solution

The fourth proportional to 11,317.52, 15,618.12 and 6,281.60 is: 8,668.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,317.52 : 15,618.12 = 6,281.60 : x
  2. Step 2: Convert to fraction form
    11,317.52/15,618.12 = 6,281.60/x
  3. Step 3: Cross multiply
    11,317.52x = 15,618.12 × 6,281.60
  4. Step 4: Simplify right side
    11,317.52x = 98,106,768.80
  5. Step 5: Solve for x
    x = 98,106,768.80/11,317.52
  6. Step 6: Final answer
    x = 8,668.57

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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.