Home / 13,368.03-18,446.70-7,399.64

Finding the Fourth Proportional to 13,368.03, 18,446.70 and 7,399.64

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Solution

The fourth proportional to 13,368.03, 18,446.70 and 7,399.64 is: 10,210.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,368.03 : 18,446.70 = 7,399.64 : x
  2. Step 2: Convert to fraction form
    13,368.03/18,446.70 = 7,399.64/x
  3. Step 3: Cross multiply
    13,368.03x = 18,446.70 × 7,399.64
  4. Step 4: Simplify right side
    13,368.03x = 136,498,939.19
  5. Step 5: Solve for x
    x = 136,498,939.19/13,368.03
  6. Step 6: Final answer
    x = 10,210.85

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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.