Home / 8,619.82-12,929.64-5,697.46

Finding the Fourth Proportional to 8,619.82, 12,929.64 and 5,697.46

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Solution

The fourth proportional to 8,619.82, 12,929.64 and 5,697.46 is: 8,546.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,619.82 : 12,929.64 = 5,697.46 : x
  2. Step 2: Convert to fraction form
    8,619.82/12,929.64 = 5,697.46/x
  3. Step 3: Cross multiply
    8,619.82x = 12,929.64 × 5,697.46
  4. Step 4: Simplify right side
    8,619.82x = 73,666,106.71
  5. Step 5: Solve for x
    x = 73,666,106.71/8,619.82
  6. Step 6: Final answer
    x = 8,546.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.