Home / 12,526.33-17,280.30-8,279.05

Finding the Fourth Proportional to 12,526.33, 17,280.30 and 8,279.05

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Solution

The fourth proportional to 12,526.33, 17,280.30 and 8,279.05 is: 11,421.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,526.33 : 17,280.30 = 8,279.05 : x
  2. Step 2: Convert to fraction form
    12,526.33/17,280.30 = 8,279.05/x
  3. Step 3: Cross multiply
    12,526.33x = 17,280.30 × 8,279.05
  4. Step 4: Simplify right side
    12,526.33x = 143,064,467.72
  5. Step 5: Solve for x
    x = 143,064,467.72/12,526.33
  6. Step 6: Final answer
    x = 11,421.10

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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.