Home / 13,395.35-18,485.30-7,426.65

Finding the Fourth Proportional to 13,395.35, 18,485.30 and 7,426.65

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Solution

The fourth proportional to 13,395.35, 18,485.30 and 7,426.65 is: 10,248.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,395.35 : 18,485.30 = 7,426.65 : x
  2. Step 2: Convert to fraction form
    13,395.35/18,485.30 = 7,426.65/x
  3. Step 3: Cross multiply
    13,395.35x = 18,485.30 × 7,426.65
  4. Step 4: Simplify right side
    13,395.35x = 137,283,816.11
  5. Step 5: Solve for x
    x = 137,283,816.11/13,395.35
  6. Step 6: Final answer
    x = 10,248.62

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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.