Home / 13,143.18-19,718.82-4,595.49

Finding the Fourth Proportional to 13,143.18, 19,718.82 and 4,595.49

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Solution

The fourth proportional to 13,143.18, 19,718.82 and 4,595.49 is: 6,894.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,143.18 : 19,718.82 = 4,595.49 : x
  2. Step 2: Convert to fraction form
    13,143.18/19,718.82 = 4,595.49/x
  3. Step 3: Cross multiply
    13,143.18x = 19,718.82 × 4,595.49
  4. Step 4: Simplify right side
    13,143.18x = 90,617,640.12
  5. Step 5: Solve for x
    x = 90,617,640.12/13,143.18
  6. Step 6: Final answer
    x = 6,894.65

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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.