Home / 15,316.67-21,136.47-9,358.31

Finding the Fourth Proportional to 15,316.67, 21,136.47 and 9,358.31

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Solution

The fourth proportional to 15,316.67, 21,136.47 and 9,358.31 is: 12,914.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,316.67 : 21,136.47 = 9,358.31 : x
  2. Step 2: Convert to fraction form
    15,316.67/21,136.47 = 9,358.31/x
  3. Step 3: Cross multiply
    15,316.67x = 21,136.47 × 9,358.31
  4. Step 4: Simplify right side
    15,316.67x = 197,801,638.57
  5. Step 5: Solve for x
    x = 197,801,638.57/15,316.67
  6. Step 6: Final answer
    x = 12,914.14

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Similar ratio
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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.