Home / 13,443.24-18,551.52-7,474.76

Finding the Fourth Proportional to 13,443.24, 18,551.52 and 7,474.76

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Solution

The fourth proportional to 13,443.24, 18,551.52 and 7,474.76 is: 10,315.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,443.24 : 18,551.52 = 7,474.76 : x
  2. Step 2: Convert to fraction form
    13,443.24/18,551.52 = 7,474.76/x
  3. Step 3: Cross multiply
    13,443.24x = 18,551.52 × 7,474.76
  4. Step 4: Simplify right side
    13,443.24x = 138,668,159.64
  5. Step 5: Solve for x
    x = 138,668,159.64/13,443.24
  6. Step 6: Final answer
    x = 10,315.08

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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.