Home / 13,325.54-19,988.25-12,513.57

Finding the Fourth Proportional to 13,325.54, 19,988.25 and 12,513.57

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Solution

The fourth proportional to 13,325.54, 19,988.25 and 12,513.57 is: 18,770.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,325.54 : 19,988.25 = 12,513.57 : x
  2. Step 2: Convert to fraction form
    13,325.54/19,988.25 = 12,513.57/x
  3. Step 3: Cross multiply
    13,325.54x = 19,988.25 × 12,513.57
  4. Step 4: Simplify right side
    13,325.54x = 250,124,365.55
  5. Step 5: Solve for x
    x = 250,124,365.55/13,325.54
  6. Step 6: Final answer
    x = 18,770.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.