Home / 12,929.09-17,840.85-7,264.49

Finding the Fourth Proportional to 12,929.09, 17,840.85 and 7,264.49

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Solution

The fourth proportional to 12,929.09, 17,840.85 and 7,264.49 is: 10,024.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,929.09 : 17,840.85 = 7,264.49 : x
  2. Step 2: Convert to fraction form
    12,929.09/17,840.85 = 7,264.49/x
  3. Step 3: Cross multiply
    12,929.09x = 17,840.85 × 7,264.49
  4. Step 4: Simplify right side
    12,929.09x = 129,604,676.42
  5. Step 5: Solve for x
    x = 129,604,676.42/12,929.09
  6. Step 6: Final answer
    x = 10,024.27

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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.