Home / 9,941.51-13,712.34-8,439.06

Finding the Fourth Proportional to 9,941.51, 13,712.34 and 8,439.06

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Solution

The fourth proportional to 9,941.51, 13,712.34 and 8,439.06 is: 11,640.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,941.51 : 13,712.34 = 8,439.06 : x
  2. Step 2: Convert to fraction form
    9,941.51/13,712.34 = 8,439.06/x
  3. Step 3: Cross multiply
    9,941.51x = 13,712.34 × 8,439.06
  4. Step 4: Simplify right side
    9,941.51x = 115,719,260.00
  5. Step 5: Solve for x
    x = 115,719,260.00/9,941.51
  6. Step 6: Final answer
    x = 11,640.01

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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.