Home / 12,875.55-19,315.75-4,108.11

Finding the Fourth Proportional to 12,875.55, 19,315.75 and 4,108.11

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Solution

The fourth proportional to 12,875.55, 19,315.75 and 4,108.11 is: 6,162.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,875.55 : 19,315.75 = 4,108.11 : x
  2. Step 2: Convert to fraction form
    12,875.55/19,315.75 = 4,108.11/x
  3. Step 3: Cross multiply
    12,875.55x = 19,315.75 × 4,108.11
  4. Step 4: Simplify right side
    12,875.55x = 79,351,225.73
  5. Step 5: Solve for x
    x = 79,351,225.73/12,875.55
  6. Step 6: Final answer
    x = 6,162.94

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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.