Home / 13,309.54-18,366.87-7,341.10

Finding the Fourth Proportional to 13,309.54, 18,366.87 and 7,341.10

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Solution

The fourth proportional to 13,309.54, 18,366.87 and 7,341.10 is: 10,130.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309.54 : 18,366.87 = 7,341.10 : x
  2. Step 2: Convert to fraction form
    13,309.54/18,366.87 = 7,341.10/x
  3. Step 3: Cross multiply
    13,309.54x = 18,366.87 × 7,341.10
  4. Step 4: Simplify right side
    13,309.54x = 134,833,029.36
  5. Step 5: Solve for x
    x = 134,833,029.36/13,309.54
  6. Step 6: Final answer
    x = 10,130.56

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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.