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Finding the Fourth Proportional to 10,690.60, 16,014.30 and 7,407.40

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Solution

The fourth proportional to 10,690.60, 16,014.30 and 7,407.40 is: 11,096.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,690.60 : 16,014.30 = 7,407.40 : x
  2. Step 2: Convert to fraction form
    10,690.60/16,014.30 = 7,407.40/x
  3. Step 3: Cross multiply
    10,690.60x = 16,014.30 × 7,407.40
  4. Step 4: Simplify right side
    10,690.60x = 118,624,325.82
  5. Step 5: Solve for x
    x = 118,624,325.82/10,690.60
  6. Step 6: Final answer
    x = 11,096.13

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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.