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Finding the Fourth Proportional to 10,015.10, 14,974.05 and 7,390.70

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Solution

The fourth proportional to 10,015.10, 14,974.05 and 7,390.70 is: 11,050.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,015.10 : 14,974.05 = 7,390.70 : x
  2. Step 2: Convert to fraction form
    10,015.10/14,974.05 = 7,390.70/x
  3. Step 3: Cross multiply
    10,015.10x = 14,974.05 × 7,390.70
  4. Step 4: Simplify right side
    10,015.10x = 110,668,711.34
  5. Step 5: Solve for x
    x = 110,668,711.34/10,015.10
  6. Step 6: Final answer
    x = 11,050.19

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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.