Home / 11,988.90-16,533.91-7,513.13

Finding the Fourth Proportional to 11,988.90, 16,533.91 and 7,513.13

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Solution

The fourth proportional to 11,988.90, 16,533.91 and 7,513.13 is: 10,361.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,988.90 : 16,533.91 = 7,513.13 : x
  2. Step 2: Convert to fraction form
    11,988.90/16,533.91 = 7,513.13/x
  3. Step 3: Cross multiply
    11,988.90x = 16,533.91 × 7,513.13
  4. Step 4: Simplify right side
    11,988.90x = 124,221,415.24
  5. Step 5: Solve for x
    x = 124,221,415.24/11,988.90
  6. Step 6: Final answer
    x = 10,361.37

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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.