Home / 19,865.98-29,809.23-13,207.11

Finding the Fourth Proportional to 19,865.98, 29,809.23 and 13,207.11

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Solution

The fourth proportional to 19,865.98, 29,809.23 and 13,207.11 is: 19,817.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,865.98 : 29,809.23 = 13,207.11 : x
  2. Step 2: Convert to fraction form
    19,865.98/29,809.23 = 13,207.11/x
  3. Step 3: Cross multiply
    19,865.98x = 29,809.23 × 13,207.11
  4. Step 4: Simplify right side
    19,865.98x = 393,693,779.63
  5. Step 5: Solve for x
    x = 393,693,779.63/19,865.98
  6. Step 6: Final answer
    x = 19,817.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.