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Finding the Fourth Proportional to 15,763.66, 21,762.75 and 10,465.72

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Solution

The fourth proportional to 15,763.66, 21,762.75 and 10,465.72 is: 14,448.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,763.66 : 21,762.75 = 10,465.72 : x
  2. Step 2: Convert to fraction form
    15,763.66/21,762.75 = 10,465.72/x
  3. Step 3: Cross multiply
    15,763.66x = 21,762.75 × 10,465.72
  4. Step 4: Simplify right side
    15,763.66x = 227,762,847.93
  5. Step 5: Solve for x
    x = 227,762,847.93/15,763.66
  6. Step 6: Final answer
    x = 14,448.60

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.