Home / 13,266.77-18,300.53-8,290.13

Finding the Fourth Proportional to 13,266.77, 18,300.53 and 8,290.13

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Solution

The fourth proportional to 13,266.77, 18,300.53 and 8,290.13 is: 11,435.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,266.77 : 18,300.53 = 8,290.13 : x
  2. Step 2: Convert to fraction form
    13,266.77/18,300.53 = 8,290.13/x
  3. Step 3: Cross multiply
    13,266.77x = 18,300.53 × 8,290.13
  4. Step 4: Simplify right side
    13,266.77x = 151,713,701.99
  5. Step 5: Solve for x
    x = 151,713,701.99/13,266.77
  6. Step 6: Final answer
    x = 11,435.62

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Double scale
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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.