Home / 8,484.32-11,718.57-7,419.36

Finding the Fourth Proportional to 8,484.32, 11,718.57 and 7,419.36

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Solution

The fourth proportional to 8,484.32, 11,718.57 and 7,419.36 is: 10,247.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,484.32 : 11,718.57 = 7,419.36 : x
  2. Step 2: Convert to fraction form
    8,484.32/11,718.57 = 7,419.36/x
  3. Step 3: Cross multiply
    8,484.32x = 11,718.57 × 7,419.36
  4. Step 4: Simplify right side
    8,484.32x = 86,944,289.52
  5. Step 5: Solve for x
    x = 86,944,289.52/8,484.32
  6. Step 6: Final answer
    x = 10,247.65

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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.