Home / 13,158.18-19,736.46-4,392.36

Finding the Fourth Proportional to 13,158.18, 19,736.46 and 4,392.36

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Solution

The fourth proportional to 13,158.18, 19,736.46 and 4,392.36 is: 6,588.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,158.18 : 19,736.46 = 4,392.36 : x
  2. Step 2: Convert to fraction form
    13,158.18/19,736.46 = 4,392.36/x
  3. Step 3: Cross multiply
    13,158.18x = 19,736.46 × 4,392.36
  4. Step 4: Simplify right side
    13,158.18x = 86,689,637.45
  5. Step 5: Solve for x
    x = 86,689,637.45/13,158.18
  6. Step 6: Final answer
    x = 6,588.27

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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.