Home / 15,467.58-21,335.67-13,577.65

Finding the Fourth Proportional to 15,467.58, 21,335.67 and 13,577.65

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Solution

The fourth proportional to 15,467.58, 21,335.67 and 13,577.65 is: 18,728.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,467.58 : 21,335.67 = 13,577.65 : x
  2. Step 2: Convert to fraction form
    15,467.58/21,335.67 = 13,577.65/x
  3. Step 3: Cross multiply
    15,467.58x = 21,335.67 × 13,577.65
  4. Step 4: Simplify right side
    15,467.58x = 289,688,206.44
  5. Step 5: Solve for x
    x = 289,688,206.44/15,467.58
  6. Step 6: Final answer
    x = 18,728.73

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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.