Home / 9,729.36-13,424.76-5,479.76

Finding the Fourth Proportional to 9,729.36, 13,424.76 and 5,479.76

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Solution

The fourth proportional to 9,729.36, 13,424.76 and 5,479.76 is: 7,561.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,729.36 : 13,424.76 = 5,479.76 : x
  2. Step 2: Convert to fraction form
    9,729.36/13,424.76 = 5,479.76/x
  3. Step 3: Cross multiply
    9,729.36x = 13,424.76 × 5,479.76
  4. Step 4: Simplify right side
    9,729.36x = 73,564,462.86
  5. Step 5: Solve for x
    x = 73,564,462.86/9,729.36
  6. Step 6: Final answer
    x = 7,561.08

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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.