Home / 19,715.28-27,207.42-11,762.16

Finding the Fourth Proportional to 19,715.28, 27,207.42 and 11,762.16

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Solution

The fourth proportional to 19,715.28, 27,207.42 and 11,762.16 is: 16,231.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,715.28 : 27,207.42 = 11,762.16 : x
  2. Step 2: Convert to fraction form
    19,715.28/27,207.42 = 11,762.16/x
  3. Step 3: Cross multiply
    19,715.28x = 27,207.42 × 11,762.16
  4. Step 4: Simplify right side
    19,715.28x = 320,018,027.23
  5. Step 5: Solve for x
    x = 320,018,027.23/19,715.28
  6. Step 6: Final answer
    x = 16,231.98

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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.