Home / 14,289.58-19,720.32-8,624.23

Finding the Fourth Proportional to 14,289.58, 19,720.32 and 8,624.23

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Solution

The fourth proportional to 14,289.58, 19,720.32 and 8,624.23 is: 11,901.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,289.58 : 19,720.32 = 8,624.23 : x
  2. Step 2: Convert to fraction form
    14,289.58/19,720.32 = 8,624.23/x
  3. Step 3: Cross multiply
    14,289.58x = 19,720.32 × 8,624.23
  4. Step 4: Simplify right side
    14,289.58x = 170,072,575.35
  5. Step 5: Solve for x
    x = 170,072,575.35/14,289.58
  6. Step 6: Final answer
    x = 11,901.86

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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.