Home / 11,317.41-15,613.74-8,340.35

Finding the Fourth Proportional to 11,317.41, 15,613.74 and 8,340.35

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Solution

The fourth proportional to 11,317.41, 15,613.74 and 8,340.35 is: 11,506.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,317.41 : 15,613.74 = 8,340.35 : x
  2. Step 2: Convert to fraction form
    11,317.41/15,613.74 = 8,340.35/x
  3. Step 3: Cross multiply
    11,317.41x = 15,613.74 × 8,340.35
  4. Step 4: Simplify right side
    11,317.41x = 130,223,978.34
  5. Step 5: Solve for x
    x = 130,223,978.34/11,317.41
  6. Step 6: Final answer
    x = 11,506.52

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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.