Home / 15,238.81-21,027.65-8,523.35

Finding the Fourth Proportional to 15,238.81, 21,027.65 and 8,523.35

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Solution

The fourth proportional to 15,238.81, 21,027.65 and 8,523.35 is: 11,761.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,238.81 : 21,027.65 = 8,523.35 : x
  2. Step 2: Convert to fraction form
    15,238.81/21,027.65 = 8,523.35/x
  3. Step 3: Cross multiply
    15,238.81x = 21,027.65 × 8,523.35
  4. Step 4: Simplify right side
    15,238.81x = 179,226,020.63
  5. Step 5: Solve for x
    x = 179,226,020.63/15,238.81
  6. Step 6: Final answer
    x = 11,761.16

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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.