Home / 19,813.64-29,730.13-8,718.93

Finding the Fourth Proportional to 19,813.64, 29,730.13 and 8,718.93

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Solution

The fourth proportional to 19,813.64, 29,730.13 and 8,718.93 is: 13,082.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,813.64 : 29,730.13 = 8,718.93 : x
  2. Step 2: Convert to fraction form
    19,813.64/29,730.13 = 8,718.93/x
  3. Step 3: Cross multiply
    19,813.64x = 29,730.13 × 8,718.93
  4. Step 4: Simplify right side
    19,813.64x = 259,214,900.56
  5. Step 5: Solve for x
    x = 259,214,900.56/19,813.64
  6. Step 6: Final answer
    x = 13,082.65

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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.