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Finding the Fourth Proportional to 14,775.78, 20,384.15 and 9,733.53

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Solution

The fourth proportional to 14,775.78, 20,384.15 and 9,733.53 is: 13,428.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,775.78 : 20,384.15 = 9,733.53 : x
  2. Step 2: Convert to fraction form
    14,775.78/20,384.15 = 9,733.53/x
  3. Step 3: Cross multiply
    14,775.78x = 20,384.15 × 9,733.53
  4. Step 4: Simplify right side
    14,775.78x = 198,409,686.88
  5. Step 5: Solve for x
    x = 198,409,686.88/14,775.78
  6. Step 6: Final answer
    x = 13,428.03

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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.