Home / 10,111.09-15,130.75-6,161.16

Finding the Fourth Proportional to 10,111.09, 15,130.75 and 6,161.16

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Solution

The fourth proportional to 10,111.09, 15,130.75 and 6,161.16 is: 9,219.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,111.09 : 15,130.75 = 6,161.16 : x
  2. Step 2: Convert to fraction form
    10,111.09/15,130.75 = 6,161.16/x
  3. Step 3: Cross multiply
    10,111.09x = 15,130.75 × 6,161.16
  4. Step 4: Simplify right side
    10,111.09x = 93,222,971.67
  5. Step 5: Solve for x
    x = 93,222,971.67/10,111.09
  6. Step 6: Final answer
    x = 9,219.87

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1.5x scale

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.