Home / 13,313.36-18,374.65-10,137.15

Finding the Fourth Proportional to 13,313.36, 18,374.65 and 10,137.15

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Solution

The fourth proportional to 13,313.36, 18,374.65 and 10,137.15 is: 13,990.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,313.36 : 18,374.65 = 10,137.15 : x
  2. Step 2: Convert to fraction form
    13,313.36/18,374.65 = 10,137.15/x
  3. Step 3: Cross multiply
    13,313.36x = 18,374.65 × 10,137.15
  4. Step 4: Simplify right side
    13,313.36x = 186,266,557.90
  5. Step 5: Solve for x
    x = 186,266,557.90/13,313.36
  6. Step 6: Final answer
    x = 13,990.95

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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.