Home / 13,693.20-18,891.55-10,116.77

Finding the Fourth Proportional to 13,693.20, 18,891.55 and 10,116.77

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Solution

The fourth proportional to 13,693.20, 18,891.55 and 10,116.77 is: 13,957.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,693.20 : 18,891.55 = 10,116.77 : x
  2. Step 2: Convert to fraction form
    13,693.20/18,891.55 = 10,116.77/x
  3. Step 3: Cross multiply
    13,693.20x = 18,891.55 × 10,116.77
  4. Step 4: Simplify right side
    13,693.20x = 191,121,466.29
  5. Step 5: Solve for x
    x = 191,121,466.29/13,693.20
  6. Step 6: Final answer
    x = 13,957.40

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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.