Home / 12,417.44-17,136.19-7,112.15

Finding the Fourth Proportional to 12,417.44, 17,136.19 and 7,112.15

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Solution

The fourth proportional to 12,417.44, 17,136.19 and 7,112.15 is: 9,814.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,417.44 : 17,136.19 = 7,112.15 : x
  2. Step 2: Convert to fraction form
    12,417.44/17,136.19 = 7,112.15/x
  3. Step 3: Cross multiply
    12,417.44x = 17,136.19 × 7,112.15
  4. Step 4: Simplify right side
    12,417.44x = 121,875,068.03
  5. Step 5: Solve for x
    x = 121,875,068.03/12,417.44
  6. Step 6: Final answer
    x = 9,814.83

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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.