Home / 19,631.75-27,087.06-12,459.05

Finding the Fourth Proportional to 19,631.75, 27,087.06 and 12,459.05

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Solution

The fourth proportional to 19,631.75, 27,087.06 and 12,459.05 is: 17,190.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,631.75 : 27,087.06 = 12,459.05 : x
  2. Step 2: Convert to fraction form
    19,631.75/27,087.06 = 12,459.05/x
  3. Step 3: Cross multiply
    19,631.75x = 27,087.06 × 12,459.05
  4. Step 4: Simplify right side
    19,631.75x = 337,478,899.46
  5. Step 5: Solve for x
    x = 337,478,899.46/19,631.75
  6. Step 6: Final answer
    x = 17,190.47

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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.