Home / 14,303.23-19,733.88-8,639.66

Finding the Fourth Proportional to 14,303.23, 19,733.88 and 8,639.66

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Solution

The fourth proportional to 14,303.23, 19,733.88 and 8,639.66 is: 11,919.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,303.23 : 19,733.88 = 8,639.66 : x
  2. Step 2: Convert to fraction form
    14,303.23/19,733.88 = 8,639.66/x
  3. Step 3: Cross multiply
    14,303.23x = 19,733.88 × 8,639.66
  4. Step 4: Simplify right side
    14,303.23x = 170,494,046.82
  5. Step 5: Solve for x
    x = 170,494,046.82/14,303.23
  6. Step 6: Final answer
    x = 11,919.97

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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.