Home / 13,926.66-20,880.65-5,485.45

Finding the Fourth Proportional to 13,926.66, 20,880.65 and 5,485.45

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Solution

The fourth proportional to 13,926.66, 20,880.65 and 5,485.45 is: 8,224.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,926.66 : 20,880.65 = 5,485.45 : x
  2. Step 2: Convert to fraction form
    13,926.66/20,880.65 = 5,485.45/x
  3. Step 3: Cross multiply
    13,926.66x = 20,880.65 × 5,485.45
  4. Step 4: Simplify right side
    13,926.66x = 114,539,681.91
  5. Step 5: Solve for x
    x = 114,539,681.91/13,926.66
  6. Step 6: Final answer
    x = 8,224.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.