Home / 14,639.70-21,963.63-4,779.57

Finding the Fourth Proportional to 14,639.70, 21,963.63 and 4,779.57

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Solution

The fourth proportional to 14,639.70, 21,963.63 and 4,779.57 is: 7,170.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,639.70 : 21,963.63 = 4,779.57 : x
  2. Step 2: Convert to fraction form
    14,639.70/21,963.63 = 4,779.57/x
  3. Step 3: Cross multiply
    14,639.70x = 21,963.63 × 4,779.57
  4. Step 4: Simplify right side
    14,639.70x = 104,976,652.13
  5. Step 5: Solve for x
    x = 104,976,652.13/14,639.70
  6. Step 6: Final answer
    x = 7,170.68

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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.