Home / 9,192.36-12,683.70-5,212.56

Finding the Fourth Proportional to 9,192.36, 12,683.70 and 5,212.56

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Solution

The fourth proportional to 9,192.36, 12,683.70 and 5,212.56 is: 7,192.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,192.36 : 12,683.70 = 5,212.56 : x
  2. Step 2: Convert to fraction form
    9,192.36/12,683.70 = 5,212.56/x
  3. Step 3: Cross multiply
    9,192.36x = 12,683.70 × 5,212.56
  4. Step 4: Simplify right side
    9,192.36x = 66,114,547.27
  5. Step 5: Solve for x
    x = 66,114,547.27/9,192.36
  6. Step 6: Final answer
    x = 7,192.34

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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.