Home / 13,290.10-18,340.81-7,322.23

Finding the Fourth Proportional to 13,290.10, 18,340.81 and 7,322.23

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Solution

The fourth proportional to 13,290.10, 18,340.81 and 7,322.23 is: 10,104.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,290.10 : 18,340.81 = 7,322.23 : x
  2. Step 2: Convert to fraction form
    13,290.10/18,340.81 = 7,322.23/x
  3. Step 3: Cross multiply
    13,290.10x = 18,340.81 × 7,322.23
  4. Step 4: Simplify right side
    13,290.10x = 134,295,555.81
  5. Step 5: Solve for x
    x = 134,295,555.81/13,290.10
  6. Step 6: Final answer
    x = 10,104.93

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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.