Home / 14,639.20-21,962.88-4,779.07

Finding the Fourth Proportional to 14,639.20, 21,962.88 and 4,779.07

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Solution

The fourth proportional to 14,639.20, 21,962.88 and 4,779.07 is: 7,169.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,639.20 : 21,962.88 = 4,779.07 : x
  2. Step 2: Convert to fraction form
    14,639.20/21,962.88 = 4,779.07/x
  3. Step 3: Cross multiply
    14,639.20x = 21,962.88 × 4,779.07
  4. Step 4: Simplify right side
    14,639.20x = 104,962,086.01
  5. Step 5: Solve for x
    x = 104,962,086.01/14,639.20
  6. Step 6: Final answer
    x = 7,169.93

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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.