Home / 8,690.42-13,038.89-4,012.67

Finding the Fourth Proportional to 8,690.42, 13,038.89 and 4,012.67

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Solution

The fourth proportional to 8,690.42, 13,038.89 and 4,012.67 is: 6,020.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,690.42 : 13,038.89 = 4,012.67 : x
  2. Step 2: Convert to fraction form
    8,690.42/13,038.89 = 4,012.67/x
  3. Step 3: Cross multiply
    8,690.42x = 13,038.89 × 4,012.67
  4. Step 4: Simplify right side
    8,690.42x = 52,320,677.48
  5. Step 5: Solve for x
    x = 52,320,677.48/8,690.42
  6. Step 6: Final answer
    x = 6,020.50

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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.