Home / 12,527.88-18,681.27-12,415.39

Finding the Fourth Proportional to 12,527.88, 18,681.27 and 12,415.39

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Solution

The fourth proportional to 12,527.88, 18,681.27 and 12,415.39 is: 18,513.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,527.88 : 18,681.27 = 12,415.39 : x
  2. Step 2: Convert to fraction form
    12,527.88/18,681.27 = 12,415.39/x
  3. Step 3: Cross multiply
    12,527.88x = 18,681.27 × 12,415.39
  4. Step 4: Simplify right side
    12,527.88x = 231,935,264.57
  5. Step 5: Solve for x
    x = 231,935,264.57/12,527.88
  6. Step 6: Final answer
    x = 18,513.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.