Home / 19,136.87-28,701.20-5,987.53

Finding the Fourth Proportional to 19,136.87, 28,701.20 and 5,987.53

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Solution

The fourth proportional to 19,136.87, 28,701.20 and 5,987.53 is: 8,980.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,136.87 : 28,701.20 = 5,987.53 : x
  2. Step 2: Convert to fraction form
    19,136.87/28,701.20 = 5,987.53/x
  3. Step 3: Cross multiply
    19,136.87x = 28,701.20 × 5,987.53
  4. Step 4: Simplify right side
    19,136.87x = 171,849,346.88
  5. Step 5: Solve for x
    x = 171,849,346.88/19,136.87
  6. Step 6: Final answer
    x = 8,980.01

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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.