Home / 13,215.36-19,823.62-4,331.19

Finding the Fourth Proportional to 13,215.36, 19,823.62 and 4,331.19

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Solution

The fourth proportional to 13,215.36, 19,823.62 and 4,331.19 is: 6,496.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,215.36 : 19,823.62 = 4,331.19 : x
  2. Step 2: Convert to fraction form
    13,215.36/19,823.62 = 4,331.19/x
  3. Step 3: Cross multiply
    13,215.36x = 19,823.62 × 4,331.19
  4. Step 4: Simplify right side
    13,215.36x = 85,859,864.71
  5. Step 5: Solve for x
    x = 85,859,864.71/13,215.36
  6. Step 6: Final answer
    x = 6,496.98

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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.