Home / 13,550.59-18,693.88-10,401.31

Finding the Fourth Proportional to 13,550.59, 18,693.88 and 10,401.31

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Solution

The fourth proportional to 13,550.59, 18,693.88 and 10,401.31 is: 14,349.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,550.59 : 18,693.88 = 10,401.31 : x
  2. Step 2: Convert to fraction form
    13,550.59/18,693.88 = 10,401.31/x
  3. Step 3: Cross multiply
    13,550.59x = 18,693.88 × 10,401.31
  4. Step 4: Simplify right side
    13,550.59x = 194,440,840.98
  5. Step 5: Solve for x
    x = 194,440,840.98/13,550.59
  6. Step 6: Final answer
    x = 14,349.25

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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.