Home / 15,525.17-21,425.23-8,811.08

Finding the Fourth Proportional to 15,525.17, 21,425.23 and 8,811.08

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Solution

The fourth proportional to 15,525.17, 21,425.23 and 8,811.08 is: 12,159.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,525.17 : 21,425.23 = 8,811.08 : x
  2. Step 2: Convert to fraction form
    15,525.17/21,425.23 = 8,811.08/x
  3. Step 3: Cross multiply
    15,525.17x = 21,425.23 × 8,811.08
  4. Step 4: Simplify right side
    15,525.17x = 188,779,350.22
  5. Step 5: Solve for x
    x = 188,779,350.22/15,525.17
  6. Step 6: Final answer
    x = 12,159.57

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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.