Home / 12,146.45-16,762.50-7,111.13

Finding the Fourth Proportional to 12,146.45, 16,762.50 and 7,111.13

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Solution

The fourth proportional to 12,146.45, 16,762.50 and 7,111.13 is: 9,813.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,146.45 : 16,762.50 = 7,111.13 : x
  2. Step 2: Convert to fraction form
    12,146.45/16,762.50 = 7,111.13/x
  3. Step 3: Cross multiply
    12,146.45x = 16,762.50 × 7,111.13
  4. Step 4: Simplify right side
    12,146.45x = 119,200,232.81
  5. Step 5: Solve for x
    x = 119,200,232.81/12,146.45
  6. Step 6: Final answer
    x = 9,813.59

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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.