Home / 13,275.90-18,313.12-8,299.26

Finding the Fourth Proportional to 13,275.90, 18,313.12 and 8,299.26

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Solution

The fourth proportional to 13,275.90, 18,313.12 and 8,299.26 is: 11,448.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,275.90 : 18,313.12 = 8,299.26 : x
  2. Step 2: Convert to fraction form
    13,275.90/18,313.12 = 8,299.26/x
  3. Step 3: Cross multiply
    13,275.90x = 18,313.12 × 8,299.26
  4. Step 4: Simplify right side
    13,275.90x = 151,985,344.29
  5. Step 5: Solve for x
    x = 151,985,344.29/13,275.90
  6. Step 6: Final answer
    x = 11,448.21

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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.