Home / 13,621.42-18,798.12-7,653.08

Finding the Fourth Proportional to 13,621.42, 18,798.12 and 7,653.08

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Solution

The fourth proportional to 13,621.42, 18,798.12 and 7,653.08 is: 10,561.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,621.42 : 18,798.12 = 7,653.08 : x
  2. Step 2: Convert to fraction form
    13,621.42/18,798.12 = 7,653.08/x
  3. Step 3: Cross multiply
    13,621.42x = 18,798.12 × 7,653.08
  4. Step 4: Simplify right side
    13,621.42x = 143,863,438.87
  5. Step 5: Solve for x
    x = 143,863,438.87/13,621.42
  6. Step 6: Final answer
    x = 10,561.56

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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.