Home / 14,918.93-20,577.53-12,665.21

Finding the Fourth Proportional to 14,918.93, 20,577.53 and 12,665.21

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Solution

The fourth proportional to 14,918.93, 20,577.53 and 12,665.21 is: 17,469.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,918.93 : 20,577.53 = 12,665.21 : x
  2. Step 2: Convert to fraction form
    14,918.93/20,577.53 = 12,665.21/x
  3. Step 3: Cross multiply
    14,918.93x = 20,577.53 × 12,665.21
  4. Step 4: Simplify right side
    14,918.93x = 260,618,740.41
  5. Step 5: Solve for x
    x = 260,618,740.41/14,918.93
  6. Step 6: Final answer
    x = 17,469.00

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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.