Home / 13,106.41-18,085.87-7,800.23

Finding the Fourth Proportional to 13,106.41, 18,085.87 and 7,800.23

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Solution

The fourth proportional to 13,106.41, 18,085.87 and 7,800.23 is: 10,763.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,106.41 : 18,085.87 = 7,800.23 : x
  2. Step 2: Convert to fraction form
    13,106.41/18,085.87 = 7,800.23/x
  3. Step 3: Cross multiply
    13,106.41x = 18,085.87 × 7,800.23
  4. Step 4: Simplify right side
    13,106.41x = 141,073,945.75
  5. Step 5: Solve for x
    x = 141,073,945.75/13,106.41
  6. Step 6: Final answer
    x = 10,763.74

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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.