Home / 15,288.44-21,091.65-9,613.13

Finding the Fourth Proportional to 15,288.44, 21,091.65 and 9,613.13

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Solution

The fourth proportional to 15,288.44, 21,091.65 and 9,613.13 is: 13,262.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,288.44 : 21,091.65 = 9,613.13 : x
  2. Step 2: Convert to fraction form
    15,288.44/21,091.65 = 9,613.13/x
  3. Step 3: Cross multiply
    15,288.44x = 21,091.65 × 9,613.13
  4. Step 4: Simplify right side
    15,288.44x = 202,756,773.36
  5. Step 5: Solve for x
    x = 202,756,773.36/15,288.44
  6. Step 6: Final answer
    x = 13,262.10

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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.