Home / 12,368.35-18,560.57-5,355.21

Finding the Fourth Proportional to 12,368.35, 18,560.57 and 5,355.21

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Solution

The fourth proportional to 12,368.35, 18,560.57 and 5,355.21 is: 8,036.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,368.35 : 18,560.57 = 5,355.21 : x
  2. Step 2: Convert to fraction form
    12,368.35/18,560.57 = 5,355.21/x
  3. Step 3: Cross multiply
    12,368.35x = 18,560.57 × 5,355.21
  4. Step 4: Simplify right side
    12,368.35x = 99,395,723.29
  5. Step 5: Solve for x
    x = 99,395,723.29/12,368.35
  6. Step 6: Final answer
    x = 8,036.30

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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.