Home / 13,674.08-18,870.16-7,624.24

Finding the Fourth Proportional to 13,674.08, 18,870.16 and 7,624.24

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Solution

The fourth proportional to 13,674.08, 18,870.16 and 7,624.24 is: 10,521.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,674.08 : 18,870.16 = 7,624.24 : x
  2. Step 2: Convert to fraction form
    13,674.08/18,870.16 = 7,624.24/x
  3. Step 3: Cross multiply
    13,674.08x = 18,870.16 × 7,624.24
  4. Step 4: Simplify right side
    13,674.08x = 143,870,628.68
  5. Step 5: Solve for x
    x = 143,870,628.68/13,674.08
  6. Step 6: Final answer
    x = 10,521.41

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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.