Home / 13,018.46-17,962.36-7,712.35

Finding the Fourth Proportional to 13,018.46, 17,962.36 and 7,712.35

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Solution

The fourth proportional to 13,018.46, 17,962.36 and 7,712.35 is: 10,641.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,018.46 : 17,962.36 = 7,712.35 : x
  2. Step 2: Convert to fraction form
    13,018.46/17,962.36 = 7,712.35/x
  3. Step 3: Cross multiply
    13,018.46x = 17,962.36 × 7,712.35
  4. Step 4: Simplify right side
    13,018.46x = 138,531,942.96
  5. Step 5: Solve for x
    x = 138,531,942.96/13,018.46
  6. Step 6: Final answer
    x = 10,641.20

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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.