Home / 13,018.89-17,952.63-11,136.70

Finding the Fourth Proportional to 13,018.89, 17,952.63 and 11,136.70

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Solution

The fourth proportional to 13,018.89, 17,952.63 and 11,136.70 is: 15,357.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,018.89 : 17,952.63 = 11,136.70 : x
  2. Step 2: Convert to fraction form
    13,018.89/17,952.63 = 11,136.70/x
  3. Step 3: Cross multiply
    13,018.89x = 17,952.63 × 11,136.70
  4. Step 4: Simplify right side
    13,018.89x = 199,933,066.52
  5. Step 5: Solve for x
    x = 199,933,066.52/13,018.89
  6. Step 6: Final answer
    x = 15,357.15

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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.