Home / 14,636.60-21,890.90-13,087.80

Finding the Fourth Proportional to 14,636.60, 21,890.90 and 13,087.80

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Solution

The fourth proportional to 14,636.60, 21,890.90 and 13,087.80 is: 19,574.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,636.60 : 21,890.90 = 13,087.80 : x
  2. Step 2: Convert to fraction form
    14,636.60/21,890.90 = 13,087.80/x
  3. Step 3: Cross multiply
    14,636.60x = 21,890.90 × 13,087.80
  4. Step 4: Simplify right side
    14,636.60x = 286,503,721.02
  5. Step 5: Solve for x
    x = 286,503,721.02/14,636.60
  6. Step 6: Final answer
    x = 19,574.47

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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.