Home / 15,524.64-21,412.08-9,235.80

Finding the Fourth Proportional to 15,524.64, 21,412.08 and 9,235.80

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Solution

The fourth proportional to 15,524.64, 21,412.08 and 9,235.80 is: 12,738.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,524.64 : 21,412.08 = 9,235.80 : x
  2. Step 2: Convert to fraction form
    15,524.64/21,412.08 = 9,235.80/x
  3. Step 3: Cross multiply
    15,524.64x = 21,412.08 × 9,235.80
  4. Step 4: Simplify right side
    15,524.64x = 197,757,688.46
  5. Step 5: Solve for x
    x = 197,757,688.46/15,524.64
  6. Step 6: Final answer
    x = 12,738.31

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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.