Home / 12,758.19-19,137.12-4,438.05

Finding the Fourth Proportional to 12,758.19, 19,137.12 and 4,438.05

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Solution

The fourth proportional to 12,758.19, 19,137.12 and 4,438.05 is: 6,657.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,758.19 : 19,137.12 = 4,438.05 : x
  2. Step 2: Convert to fraction form
    12,758.19/19,137.12 = 4,438.05/x
  3. Step 3: Cross multiply
    12,758.19x = 19,137.12 × 4,438.05
  4. Step 4: Simplify right side
    12,758.19x = 84,931,495.42
  5. Step 5: Solve for x
    x = 84,931,495.42/12,758.19
  6. Step 6: Final answer
    x = 6,657.02

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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.