Home / 13,890.53-19,169.39-7,602.91

Finding the Fourth Proportional to 13,890.53, 19,169.39 and 7,602.91

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Solution

The fourth proportional to 13,890.53, 19,169.39 and 7,602.91 is: 10,492.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,890.53 : 19,169.39 = 7,602.91 : x
  2. Step 2: Convert to fraction form
    13,890.53/19,169.39 = 7,602.91/x
  3. Step 3: Cross multiply
    13,890.53x = 19,169.39 × 7,602.91
  4. Step 4: Simplify right side
    13,890.53x = 145,743,118.01
  5. Step 5: Solve for x
    x = 145,743,118.01/13,890.53
  6. Step 6: Final answer
    x = 10,492.26

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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.