Home / 13,266.29-18,302.77-8,225.30

Finding the Fourth Proportional to 13,266.29, 18,302.77 and 8,225.30

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Solution

The fourth proportional to 13,266.29, 18,302.77 and 8,225.30 is: 11,347.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,266.29 : 18,302.77 = 8,225.30 : x
  2. Step 2: Convert to fraction form
    13,266.29/18,302.77 = 8,225.30/x
  3. Step 3: Cross multiply
    13,266.29x = 18,302.77 × 8,225.30
  4. Step 4: Simplify right side
    13,266.29x = 150,545,774.08
  5. Step 5: Solve for x
    x = 150,545,774.08/13,266.29
  6. Step 6: Final answer
    x = 11,347.99

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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.