Home / 15,525.64-21,387.74-11,539.84

Finding the Fourth Proportional to 15,525.64, 21,387.74 and 11,539.84

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Solution

The fourth proportional to 15,525.64, 21,387.74 and 11,539.84 is: 15,897.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,525.64 : 21,387.74 = 11,539.84 : x
  2. Step 2: Convert to fraction form
    15,525.64/21,387.74 = 11,539.84/x
  3. Step 3: Cross multiply
    15,525.64x = 21,387.74 × 11,539.84
  4. Step 4: Simplify right side
    15,525.64x = 246,811,097.56
  5. Step 5: Solve for x
    x = 246,811,097.56/15,525.64
  6. Step 6: Final answer
    x = 15,897.00

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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.