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Finding the Fourth Proportional to 14,828, 20,459.36 and 8,858.76

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Solution

The fourth proportional to 14,828, 20,459.36 and 8,858.76 is: 12,223.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,828 : 20,459.36 = 8,858.76 : x
  2. Step 2: Convert to fraction form
    14,828/20,459.36 = 8,858.76/x
  3. Step 3: Cross multiply
    14,828x = 20,459.36 × 8,858.76
  4. Step 4: Simplify right side
    14,828x = 181,244,559.99
  5. Step 5: Solve for x
    x = 181,244,559.99/14,828
  6. Step 6: Final answer
    x = 12,223.13

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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.