Home / 14,289.45-19,720.16-8,624.11

Finding the Fourth Proportional to 14,289.45, 19,720.16 and 8,624.11

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Solution

The fourth proportional to 14,289.45, 19,720.16 and 8,624.11 is: 11,901.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,289.45 : 19,720.16 = 8,624.11 : x
  2. Step 2: Convert to fraction form
    14,289.45/19,720.16 = 8,624.11/x
  3. Step 3: Cross multiply
    14,289.45x = 19,720.16 × 8,624.11
  4. Step 4: Simplify right side
    14,289.45x = 170,068,736.64
  5. Step 5: Solve for x
    x = 170,068,736.64/14,289.45
  6. Step 6: Final answer
    x = 11,901.70

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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.