Home / 19,406-26,784.60-12,331.04

Finding the Fourth Proportional to 19,406, 26,784.60 and 12,331.04

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Solution

The fourth proportional to 19,406, 26,784.60 and 12,331.04 is: 17,019.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,406 : 26,784.60 = 12,331.04 : x
  2. Step 2: Convert to fraction form
    19,406/26,784.60 = 12,331.04/x
  3. Step 3: Cross multiply
    19,406x = 26,784.60 × 12,331.04
  4. Step 4: Simplify right side
    19,406x = 330,281,973.98
  5. Step 5: Solve for x
    x = 330,281,973.98/19,406
  6. Step 6: Final answer
    x = 17,019.58

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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.