Home / 9,725.36-13,418.88-5,743.76

Finding the Fourth Proportional to 9,725.36, 13,418.88 and 5,743.76

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Solution

The fourth proportional to 9,725.36, 13,418.88 and 5,743.76 is: 7,925.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,725.36 : 13,418.88 = 5,743.76 : x
  2. Step 2: Convert to fraction form
    9,725.36/13,418.88 = 5,743.76/x
  3. Step 3: Cross multiply
    9,725.36x = 13,418.88 × 5,743.76
  4. Step 4: Simplify right side
    9,725.36x = 77,074,826.19
  5. Step 5: Solve for x
    x = 77,074,826.19/9,725.36
  6. Step 6: Final answer
    x = 7,925.14

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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.