Home / 9,109.90-13,656.32-4,943.80

Finding the Fourth Proportional to 9,109.90, 13,656.32 and 4,943.80

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Solution

The fourth proportional to 9,109.90, 13,656.32 and 4,943.80 is: 7,411.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,109.90 : 13,656.32 = 4,943.80 : x
  2. Step 2: Convert to fraction form
    9,109.90/13,656.32 = 4,943.80/x
  3. Step 3: Cross multiply
    9,109.90x = 13,656.32 × 4,943.80
  4. Step 4: Simplify right side
    9,109.90x = 67,514,114.82
  5. Step 5: Solve for x
    x = 67,514,114.82/9,109.90
  6. Step 6: Final answer
    x = 7,411.07

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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.