Home / 15,828.03-21,848.21-9,116.37

Finding the Fourth Proportional to 15,828.03, 21,848.21 and 9,116.37

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Solution

The fourth proportional to 15,828.03, 21,848.21 and 9,116.37 is: 12,583.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,828.03 : 21,848.21 = 9,116.37 : x
  2. Step 2: Convert to fraction form
    15,828.03/21,848.21 = 9,116.37/x
  3. Step 3: Cross multiply
    15,828.03x = 21,848.21 × 9,116.37
  4. Step 4: Simplify right side
    15,828.03x = 199,176,320.62
  5. Step 5: Solve for x
    x = 199,176,320.62/15,828.03
  6. Step 6: Final answer
    x = 12,583.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.