Home / 8,690.98-13,036.46-2,117.16

Finding the Fourth Proportional to 8,690.98, 13,036.46 and 2,117.16

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Solution

The fourth proportional to 8,690.98, 13,036.46 and 2,117.16 is: 3,175.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,690.98 : 13,036.46 = 2,117.16 : x
  2. Step 2: Convert to fraction form
    8,690.98/13,036.46 = 2,117.16/x
  3. Step 3: Cross multiply
    8,690.98x = 13,036.46 × 2,117.16
  4. Step 4: Simplify right side
    8,690.98x = 27,600,271.65
  5. Step 5: Solve for x
    x = 27,600,271.65/8,690.98
  6. Step 6: Final answer
    x = 3,175.74

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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.