Home / 15,526.25-21,431.63-9,238.49

Finding the Fourth Proportional to 15,526.25, 21,431.63 and 9,238.49

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Solution

The fourth proportional to 15,526.25, 21,431.63 and 9,238.49 is: 12,752.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,526.25 : 21,431.63 = 9,238.49 : x
  2. Step 2: Convert to fraction form
    15,526.25/21,431.63 = 9,238.49/x
  3. Step 3: Cross multiply
    15,526.25x = 21,431.63 × 9,238.49
  4. Step 4: Simplify right side
    15,526.25x = 197,995,853.25
  5. Step 5: Solve for x
    x = 197,995,853.25/15,526.25
  6. Step 6: Final answer
    x = 12,752.33

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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.