Home / 14,708.61-20,297.39-8,419.77

Finding the Fourth Proportional to 14,708.61, 20,297.39 and 8,419.77

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Solution

The fourth proportional to 14,708.61, 20,297.39 and 8,419.77 is: 11,619.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,708.61 : 20,297.39 = 8,419.77 : x
  2. Step 2: Convert to fraction form
    14,708.61/20,297.39 = 8,419.77/x
  3. Step 3: Cross multiply
    14,708.61x = 20,297.39 × 8,419.77
  4. Step 4: Simplify right side
    14,708.61x = 170,899,313.30
  5. Step 5: Solve for x
    x = 170,899,313.30/14,708.61
  6. Step 6: Final answer
    x = 11,619.00

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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.