Home / 13,359.70-18,435.60-7,391.02

Finding the Fourth Proportional to 13,359.70, 18,435.60 and 7,391.02

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Solution

The fourth proportional to 13,359.70, 18,435.60 and 7,391.02 is: 10,199.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,359.70 : 18,435.60 = 7,391.02 : x
  2. Step 2: Convert to fraction form
    13,359.70/18,435.60 = 7,391.02/x
  3. Step 3: Cross multiply
    13,359.70x = 18,435.60 × 7,391.02
  4. Step 4: Simplify right side
    13,359.70x = 136,257,888.31
  5. Step 5: Solve for x
    x = 136,257,888.31/13,359.70
  6. Step 6: Final answer
    x = 10,199.17

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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.