Home / 9,722.36-13,429.26-7,439.82

Finding the Fourth Proportional to 9,722.36, 13,429.26 and 7,439.82

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Solution

The fourth proportional to 9,722.36, 13,429.26 and 7,439.82 is: 10,276.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,722.36 : 13,429.26 = 7,439.82 : x
  2. Step 2: Convert to fraction form
    9,722.36/13,429.26 = 7,439.82/x
  3. Step 3: Cross multiply
    9,722.36x = 13,429.26 × 7,439.82
  4. Step 4: Simplify right side
    9,722.36x = 99,911,226.77
  5. Step 5: Solve for x
    x = 99,911,226.77/9,722.36
  6. Step 6: Final answer
    x = 10,276.44

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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.