Home / 11,113.63-16,670.88-4,870.55

Finding the Fourth Proportional to 11,113.63, 16,670.88 and 4,870.55

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Solution

The fourth proportional to 11,113.63, 16,670.88 and 4,870.55 is: 7,306.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,113.63 : 16,670.88 = 4,870.55 : x
  2. Step 2: Convert to fraction form
    11,113.63/16,670.88 = 4,870.55/x
  3. Step 3: Cross multiply
    11,113.63x = 16,670.88 × 4,870.55
  4. Step 4: Simplify right side
    11,113.63x = 81,196,396.26
  5. Step 5: Solve for x
    x = 81,196,396.26/11,113.63
  6. Step 6: Final answer
    x = 7,306.02

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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.