Home / 13,290.65-18,340.41-7,322.19

Finding the Fourth Proportional to 13,290.65, 18,340.41 and 7,322.19

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Solution

The fourth proportional to 13,290.65, 18,340.41 and 7,322.19 is: 10,104.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,290.65 : 18,340.41 = 7,322.19 : x
  2. Step 2: Convert to fraction form
    13,290.65/18,340.41 = 7,322.19/x
  3. Step 3: Cross multiply
    13,290.65x = 18,340.41 × 7,322.19
  4. Step 4: Simplify right side
    13,290.65x = 134,291,925.38
  5. Step 5: Solve for x
    x = 134,291,925.38/13,290.65
  6. Step 6: Final answer
    x = 10,104.24

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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.