Home / 19,774.23-27,318.09-12,984.36

Finding the Fourth Proportional to 19,774.23, 27,318.09 and 12,984.36

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Solution

The fourth proportional to 19,774.23, 27,318.09 and 12,984.36 is: 17,937.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,774.23 : 27,318.09 = 12,984.36 : x
  2. Step 2: Convert to fraction form
    19,774.23/27,318.09 = 12,984.36/x
  3. Step 3: Cross multiply
    19,774.23x = 27,318.09 × 12,984.36
  4. Step 4: Simplify right side
    19,774.23x = 354,707,915.07
  5. Step 5: Solve for x
    x = 354,707,915.07/19,774.23
  6. Step 6: Final answer
    x = 17,937.89

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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.