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Finding the Fourth Proportional to 10,459.50, 15,690.72 and 3,064.50

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Solution

The fourth proportional to 10,459.50, 15,690.72 and 3,064.50 is: 4,597.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,459.50 : 15,690.72 = 3,064.50 : x
  2. Step 2: Convert to fraction form
    10,459.50/15,690.72 = 3,064.50/x
  3. Step 3: Cross multiply
    10,459.50x = 15,690.72 × 3,064.50
  4. Step 4: Simplify right side
    10,459.50x = 48,084,211.44
  5. Step 5: Solve for x
    x = 48,084,211.44/10,459.50
  6. Step 6: Final answer
    x = 4,597.18

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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.