Home / 12,868.19-19,302.45-3,508.67

Finding the Fourth Proportional to 12,868.19, 19,302.45 and 3,508.67

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Solution

The fourth proportional to 12,868.19, 19,302.45 and 3,508.67 is: 5,263.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,868.19 : 19,302.45 = 3,508.67 : x
  2. Step 2: Convert to fraction form
    12,868.19/19,302.45 = 3,508.67/x
  3. Step 3: Cross multiply
    12,868.19x = 19,302.45 × 3,508.67
  4. Step 4: Simplify right side
    12,868.19x = 67,725,909.70
  5. Step 5: Solve for x
    x = 67,725,909.70/12,868.19
  6. Step 6: Final answer
    x = 5,263.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.