Home / 18,493.72-25,515.08-10,530.31

Finding the Fourth Proportional to 18,493.72, 25,515.08 and 10,530.31

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Solution

The fourth proportional to 18,493.72, 25,515.08 and 10,530.31 is: 14,528.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,493.72 : 25,515.08 = 10,530.31 : x
  2. Step 2: Convert to fraction form
    18,493.72/25,515.08 = 10,530.31/x
  3. Step 3: Cross multiply
    18,493.72x = 25,515.08 × 10,530.31
  4. Step 4: Simplify right side
    18,493.72x = 268,681,702.07
  5. Step 5: Solve for x
    x = 268,681,702.07/18,493.72
  6. Step 6: Final answer
    x = 14,528.27

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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.