Home / 13,279.48-18,324.96-7,613.95

Finding the Fourth Proportional to 13,279.48, 18,324.96 and 7,613.95

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Solution

The fourth proportional to 13,279.48, 18,324.96 and 7,613.95 is: 10,506.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,279.48 : 18,324.96 = 7,613.95 : x
  2. Step 2: Convert to fraction form
    13,279.48/18,324.96 = 7,613.95/x
  3. Step 3: Cross multiply
    13,279.48x = 18,324.96 × 7,613.95
  4. Step 4: Simplify right side
    13,279.48x = 139,525,329.19
  5. Step 5: Solve for x
    x = 139,525,329.19/13,279.48
  6. Step 6: Final answer
    x = 10,506.84

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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.