Home / 14,880.07-20,534.47-8,165.78

Finding the Fourth Proportional to 14,880.07, 20,534.47 and 8,165.78

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Solution

The fourth proportional to 14,880.07, 20,534.47 and 8,165.78 is: 11,268.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,880.07 : 20,534.47 = 8,165.78 : x
  2. Step 2: Convert to fraction form
    14,880.07/20,534.47 = 8,165.78/x
  3. Step 3: Cross multiply
    14,880.07x = 20,534.47 × 8,165.78
  4. Step 4: Simplify right side
    14,880.07x = 167,679,964.44
  5. Step 5: Solve for x
    x = 167,679,964.44/14,880.07
  6. Step 6: Final answer
    x = 11,268.76

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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.