Home / 19,826.85-29,740.28-6,678.12

Finding the Fourth Proportional to 19,826.85, 29,740.28 and 6,678.12

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Solution

The fourth proportional to 19,826.85, 29,740.28 and 6,678.12 is: 10,017.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,826.85 : 29,740.28 = 6,678.12 : x
  2. Step 2: Convert to fraction form
    19,826.85/29,740.28 = 6,678.12/x
  3. Step 3: Cross multiply
    19,826.85x = 29,740.28 × 6,678.12
  4. Step 4: Simplify right side
    19,826.85x = 198,609,158.67
  5. Step 5: Solve for x
    x = 198,609,158.67/19,826.85
  6. Step 6: Final answer
    x = 10,017.18

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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.