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Finding the Fourth Proportional to 19,322.94, 28,962.12 and 8,777.14

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Solution

The fourth proportional to 19,322.94, 28,962.12 and 8,777.14 is: 13,155.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,322.94 : 28,962.12 = 8,777.14 : x
  2. Step 2: Convert to fraction form
    19,322.94/28,962.12 = 8,777.14/x
  3. Step 3: Cross multiply
    19,322.94x = 28,962.12 × 8,777.14
  4. Step 4: Simplify right side
    19,322.94x = 254,204,581.94
  5. Step 5: Solve for x
    x = 254,204,581.94/19,322.94
  6. Step 6: Final answer
    x = 13,155.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.