Home / 8,920.29-13,381.35-3,075.54

Finding the Fourth Proportional to 8,920.29, 13,381.35 and 3,075.54

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Solution

The fourth proportional to 8,920.29, 13,381.35 and 3,075.54 is: 4,613.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,920.29 : 13,381.35 = 3,075.54 : x
  2. Step 2: Convert to fraction form
    8,920.29/13,381.35 = 3,075.54/x
  3. Step 3: Cross multiply
    8,920.29x = 13,381.35 × 3,075.54
  4. Step 4: Simplify right side
    8,920.29x = 41,154,832.77
  5. Step 5: Solve for x
    x = 41,154,832.77/8,920.29
  6. Step 6: Final answer
    x = 4,613.62

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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.