Home / 12,627.79-17,425.81-6,885.12

Finding the Fourth Proportional to 12,627.79, 17,425.81 and 6,885.12

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Solution

The fourth proportional to 12,627.79, 17,425.81 and 6,885.12 is: 9,501.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,627.79 : 17,425.81 = 6,885.12 : x
  2. Step 2: Convert to fraction form
    12,627.79/17,425.81 = 6,885.12/x
  3. Step 3: Cross multiply
    12,627.79x = 17,425.81 × 6,885.12
  4. Step 4: Simplify right side
    12,627.79x = 119,978,792.95
  5. Step 5: Solve for x
    x = 119,978,792.95/12,627.79
  6. Step 6: Final answer
    x = 9,501.17

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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.