Home / 15,316.36-21,136.04-9,358.00

Finding the Fourth Proportional to 15,316.36, 21,136.04 and 9,358.00

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Solution

The fourth proportional to 15,316.36, 21,136.04 and 9,358.00 is: 12,913.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,316.36 : 21,136.04 = 9,358.00 : x
  2. Step 2: Convert to fraction form
    15,316.36/21,136.04 = 9,358.00/x
  3. Step 3: Cross multiply
    15,316.36x = 21,136.04 × 9,358.00
  4. Step 4: Simplify right side
    15,316.36x = 197,790,997.78
  5. Step 5: Solve for x
    x = 197,790,997.78/15,316.36
  6. Step 6: Final answer
    x = 12,913.71

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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.