Home / 12,150.13-16,761.45-7,111.23

Finding the Fourth Proportional to 12,150.13, 16,761.45 and 7,111.23

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Solution

The fourth proportional to 12,150.13, 16,761.45 and 7,111.23 is: 9,810.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,150.13 : 16,761.45 = 7,111.23 : x
  2. Step 2: Convert to fraction form
    12,150.13/16,761.45 = 7,111.23/x
  3. Step 3: Cross multiply
    12,150.13x = 16,761.45 × 7,111.23
  4. Step 4: Simplify right side
    12,150.13x = 119,194,526.08
  5. Step 5: Solve for x
    x = 119,194,526.08/12,150.13
  6. Step 6: Final answer
    x = 9,810.14

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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.