Home / 13,443.53-18,551.66-7,475.04

Finding the Fourth Proportional to 13,443.53, 18,551.66 and 7,475.04

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Solution

The fourth proportional to 13,443.53, 18,551.66 and 7,475.04 is: 10,315.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,443.53 : 18,551.66 = 7,475.04 : x
  2. Step 2: Convert to fraction form
    13,443.53/18,551.66 = 7,475.04/x
  3. Step 3: Cross multiply
    13,443.53x = 18,551.66 × 7,475.04
  4. Step 4: Simplify right side
    13,443.53x = 138,674,363.19
  5. Step 5: Solve for x
    x = 138,674,363.19/13,443.53
  6. Step 6: Final answer
    x = 10,315.33

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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.