Home / 18,493.85-25,515.27-10,530.45

Finding the Fourth Proportional to 18,493.85, 25,515.27 and 10,530.45

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Solution

The fourth proportional to 18,493.85, 25,515.27 and 10,530.45 is: 14,528.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,493.85 : 25,515.27 = 10,530.45 : x
  2. Step 2: Convert to fraction form
    18,493.85/25,515.27 = 10,530.45/x
  3. Step 3: Cross multiply
    18,493.85x = 25,515.27 × 10,530.45
  4. Step 4: Simplify right side
    18,493.85x = 268,687,274.97
  5. Step 5: Solve for x
    x = 268,687,274.97/18,493.85
  6. Step 6: Final answer
    x = 14,528.47

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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.