Home / 6,987.95-10,479.70-2,307.09

Finding the Fourth Proportional to 6,987.95, 10,479.70 and 2,307.09

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Solution

The fourth proportional to 6,987.95, 10,479.70 and 2,307.09 is: 3,459.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,987.95 : 10,479.70 = 2,307.09 : x
  2. Step 2: Convert to fraction form
    6,987.95/10,479.70 = 2,307.09/x
  3. Step 3: Cross multiply
    6,987.95x = 10,479.70 × 2,307.09
  4. Step 4: Simplify right side
    6,987.95x = 24,177,611.07
  5. Step 5: Solve for x
    x = 24,177,611.07/6,987.95
  6. Step 6: Final answer
    x = 3,459.90

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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.