Home / 18,493.08-25,494.84-12,515.28

Finding the Fourth Proportional to 18,493.08, 25,494.84 and 12,515.28

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Solution

The fourth proportional to 18,493.08, 25,494.84 and 12,515.28 is: 17,253.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,493.08 : 25,494.84 = 12,515.28 : x
  2. Step 2: Convert to fraction form
    18,493.08/25,494.84 = 12,515.28/x
  3. Step 3: Cross multiply
    18,493.08x = 25,494.84 × 12,515.28
  4. Step 4: Simplify right side
    18,493.08x = 319,075,061.16
  5. Step 5: Solve for x
    x = 319,075,061.16/18,493.08
  6. Step 6: Final answer
    x = 17,253.75

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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.