Home / 12,910.89-17,810.44-8,437.26

Finding the Fourth Proportional to 12,910.89, 17,810.44 and 8,437.26

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Solution

The fourth proportional to 12,910.89, 17,810.44 and 8,437.26 is: 11,639.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,910.89 : 17,810.44 = 8,437.26 : x
  2. Step 2: Convert to fraction form
    12,910.89/17,810.44 = 8,437.26/x
  3. Step 3: Cross multiply
    12,910.89x = 17,810.44 × 8,437.26
  4. Step 4: Simplify right side
    12,910.89x = 150,271,312.99
  5. Step 5: Solve for x
    x = 150,271,312.99/12,910.89
  6. Step 6: Final answer
    x = 11,639.11

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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.