Home / 19,623.85-29,417.97-7,135.05

Finding the Fourth Proportional to 19,623.85, 29,417.97 and 7,135.05

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Solution

The fourth proportional to 19,623.85, 29,417.97 and 7,135.05 is: 10,696.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,623.85 : 29,417.97 = 7,135.05 : x
  2. Step 2: Convert to fraction form
    19,623.85/29,417.97 = 7,135.05/x
  3. Step 3: Cross multiply
    19,623.85x = 29,417.97 × 7,135.05
  4. Step 4: Simplify right side
    19,623.85x = 209,898,686.85
  5. Step 5: Solve for x
    x = 209,898,686.85/19,623.85
  6. Step 6: Final answer
    x = 10,696.10

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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.