Home / 13,266.61-18,303.36-8,229.01

Finding the Fourth Proportional to 13,266.61, 18,303.36 and 8,229.01

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Solution

The fourth proportional to 13,266.61, 18,303.36 and 8,229.01 is: 11,353.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,266.61 : 18,303.36 = 8,229.01 : x
  2. Step 2: Convert to fraction form
    13,266.61/18,303.36 = 8,229.01/x
  3. Step 3: Cross multiply
    13,266.61x = 18,303.36 × 8,229.01
  4. Step 4: Simplify right side
    13,266.61x = 150,618,532.47
  5. Step 5: Solve for x
    x = 150,618,532.47/13,266.61
  6. Step 6: Final answer
    x = 11,353.20

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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.