Home / 13,315.32-19,965.83-6,637.28

Finding the Fourth Proportional to 13,315.32, 19,965.83 and 6,637.28

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Solution

The fourth proportional to 13,315.32, 19,965.83 and 6,637.28 is: 9,952.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,315.32 : 19,965.83 = 6,637.28 : x
  2. Step 2: Convert to fraction form
    13,315.32/19,965.83 = 6,637.28/x
  3. Step 3: Cross multiply
    13,315.32x = 19,965.83 × 6,637.28
  4. Step 4: Simplify right side
    13,315.32x = 132,518,671.13
  5. Step 5: Solve for x
    x = 132,518,671.13/13,315.32
  6. Step 6: Final answer
    x = 9,952.35

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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.