Home / 15,364.34-21,179.75-12,527.36

Finding the Fourth Proportional to 15,364.34, 21,179.75 and 12,527.36

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Solution

The fourth proportional to 15,364.34, 21,179.75 and 12,527.36 is: 17,268.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,364.34 : 21,179.75 = 12,527.36 : x
  2. Step 2: Convert to fraction form
    15,364.34/21,179.75 = 12,527.36/x
  3. Step 3: Cross multiply
    15,364.34x = 21,179.75 × 12,527.36
  4. Step 4: Simplify right side
    15,364.34x = 265,326,184.42
  5. Step 5: Solve for x
    x = 265,326,184.42/15,364.34
  6. Step 6: Final answer
    x = 17,268.97

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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.