Home / 12,356.85-18,532.48-5,686.94

Finding the Fourth Proportional to 12,356.85, 18,532.48 and 5,686.94

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Solution

The fourth proportional to 12,356.85, 18,532.48 and 5,686.94 is: 8,529.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,356.85 : 18,532.48 = 5,686.94 : x
  2. Step 2: Convert to fraction form
    12,356.85/18,532.48 = 5,686.94/x
  3. Step 3: Cross multiply
    12,356.85x = 18,532.48 × 5,686.94
  4. Step 4: Simplify right side
    12,356.85x = 105,393,101.81
  5. Step 5: Solve for x
    x = 105,393,101.81/12,356.85
  6. Step 6: Final answer
    x = 8,529.12

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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.