Home / 13,802.18-19,051.35-8,136.62

Finding the Fourth Proportional to 13,802.18, 19,051.35 and 8,136.62

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Solution

The fourth proportional to 13,802.18, 19,051.35 and 8,136.62 is: 11,231.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,802.18 : 19,051.35 = 8,136.62 : x
  2. Step 2: Convert to fraction form
    13,802.18/19,051.35 = 8,136.62/x
  3. Step 3: Cross multiply
    13,802.18x = 19,051.35 × 8,136.62
  4. Step 4: Simplify right side
    13,802.18x = 155,013,595.44
  5. Step 5: Solve for x
    x = 155,013,595.44/13,802.18
  6. Step 6: Final answer
    x = 11,231.10

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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.