Home / 19,555.90-29,348.43-7,869.22

Finding the Fourth Proportional to 19,555.90, 29,348.43 and 7,869.22

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Solution

The fourth proportional to 19,555.90, 29,348.43 and 7,869.22 is: 11,809.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,555.90 : 29,348.43 = 7,869.22 : x
  2. Step 2: Convert to fraction form
    19,555.90/29,348.43 = 7,869.22/x
  3. Step 3: Cross multiply
    19,555.90x = 29,348.43 × 7,869.22
  4. Step 4: Simplify right side
    19,555.90x = 230,949,252.32
  5. Step 5: Solve for x
    x = 230,949,252.32/19,555.90
  6. Step 6: Final answer
    x = 11,809.70

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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.