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Finding the Fourth Proportional to 14,509.08, 20,022.86 and 7,885.08

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Solution

The fourth proportional to 14,509.08, 20,022.86 and 7,885.08 is: 10,881.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,509.08 : 20,022.86 = 7,885.08 : x
  2. Step 2: Convert to fraction form
    14,509.08/20,022.86 = 7,885.08/x
  3. Step 3: Cross multiply
    14,509.08x = 20,022.86 × 7,885.08
  4. Step 4: Simplify right side
    14,509.08x = 157,881,852.93
  5. Step 5: Solve for x
    x = 157,881,852.93/14,509.08
  6. Step 6: Final answer
    x = 10,881.59

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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.