Home / 12,300.57-18,451.67-3,535.56

Finding the Fourth Proportional to 12,300.57, 18,451.67 and 3,535.56

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Solution

The fourth proportional to 12,300.57, 18,451.67 and 3,535.56 is: 5,303.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,300.57 : 18,451.67 = 3,535.56 : x
  2. Step 2: Convert to fraction form
    12,300.57/18,451.67 = 3,535.56/x
  3. Step 3: Cross multiply
    12,300.57x = 18,451.67 × 3,535.56
  4. Step 4: Simplify right side
    12,300.57x = 65,236,968.71
  5. Step 5: Solve for x
    x = 65,236,968.71/12,300.57
  6. Step 6: Final answer
    x = 5,303.57

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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.