Home / 19,420.56-29,126.51-7,574.65

Finding the Fourth Proportional to 19,420.56, 29,126.51 and 7,574.65

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Solution

The fourth proportional to 19,420.56, 29,126.51 and 7,574.65 is: 11,360.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,420.56 : 29,126.51 = 7,574.65 : x
  2. Step 2: Convert to fraction form
    19,420.56/29,126.51 = 7,574.65/x
  3. Step 3: Cross multiply
    19,420.56x = 29,126.51 × 7,574.65
  4. Step 4: Simplify right side
    19,420.56x = 220,623,180.87
  5. Step 5: Solve for x
    x = 220,623,180.87/19,420.56
  6. Step 6: Final answer
    x = 11,360.29

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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.