Home / 14,181.23-19,570.53-7,721.29

Finding the Fourth Proportional to 14,181.23, 19,570.53 and 7,721.29

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Solution

The fourth proportional to 14,181.23, 19,570.53 and 7,721.29 is: 10,655.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,181.23 : 19,570.53 = 7,721.29 : x
  2. Step 2: Convert to fraction form
    14,181.23/19,570.53 = 7,721.29/x
  3. Step 3: Cross multiply
    14,181.23x = 19,570.53 × 7,721.29
  4. Step 4: Simplify right side
    14,181.23x = 151,109,747.57
  5. Step 5: Solve for x
    x = 151,109,747.57/14,181.23
  6. Step 6: Final answer
    x = 10,655.62

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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.