Home / 13,018.93-19,528.39-3,158.21

Finding the Fourth Proportional to 13,018.93, 19,528.39 and 3,158.21

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Solution

The fourth proportional to 13,018.93, 19,528.39 and 3,158.21 is: 4,737.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,018.93 : 19,528.39 = 3,158.21 : x
  2. Step 2: Convert to fraction form
    13,018.93/19,528.39 = 3,158.21/x
  3. Step 3: Cross multiply
    13,018.93x = 19,528.39 × 3,158.21
  4. Step 4: Simplify right side
    13,018.93x = 61,674,651.04
  5. Step 5: Solve for x
    x = 61,674,651.04/13,018.93
  6. Step 6: Final answer
    x = 4,737.31

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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.