Home / 14,169.90-21,254.40-3,639.50

Finding the Fourth Proportional to 14,169.90, 21,254.40 and 3,639.50

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Solution

The fourth proportional to 14,169.90, 21,254.40 and 3,639.50 is: 5,459.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,169.90 : 21,254.40 = 3,639.50 : x
  2. Step 2: Convert to fraction form
    14,169.90/21,254.40 = 3,639.50/x
  3. Step 3: Cross multiply
    14,169.90x = 21,254.40 × 3,639.50
  4. Step 4: Simplify right side
    14,169.90x = 77,355,282.53
  5. Step 5: Solve for x
    x = 77,355,282.53/14,169.90
  6. Step 6: Final answer
    x = 5,459.13

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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.