Home / 14,343.95-21,491.65-8,785.70

Finding the Fourth Proportional to 14,343.95, 21,491.65 and 8,785.70

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Solution

The fourth proportional to 14,343.95, 21,491.65 and 8,785.70 is: 13,163.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,343.95 : 21,491.65 = 8,785.70 : x
  2. Step 2: Convert to fraction form
    14,343.95/21,491.65 = 8,785.70/x
  3. Step 3: Cross multiply
    14,343.95x = 21,491.65 × 8,785.70
  4. Step 4: Simplify right side
    14,343.95x = 188,819,081.95
  5. Step 5: Solve for x
    x = 188,819,081.95/14,343.95
  6. Step 6: Final answer
    x = 13,163.68

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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.