Home / 12,957.95-19,438.52-4,638.85

Finding the Fourth Proportional to 12,957.95, 19,438.52 and 4,638.85

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Solution

The fourth proportional to 12,957.95, 19,438.52 and 4,638.85 is: 6,958.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,957.95 : 19,438.52 = 4,638.85 : x
  2. Step 2: Convert to fraction form
    12,957.95/19,438.52 = 4,638.85/x
  3. Step 3: Cross multiply
    12,957.95x = 19,438.52 × 4,638.85
  4. Step 4: Simplify right side
    12,957.95x = 90,172,378.50
  5. Step 5: Solve for x
    x = 90,172,378.50/12,957.95
  6. Step 6: Final answer
    x = 6,958.85

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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.