Home / 15,673.48-21,630.76-8,601.28

Finding the Fourth Proportional to 15,673.48, 21,630.76 and 8,601.28

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Solution

The fourth proportional to 15,673.48, 21,630.76 and 8,601.28 is: 11,870.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,673.48 : 21,630.76 = 8,601.28 : x
  2. Step 2: Convert to fraction form
    15,673.48/21,630.76 = 8,601.28/x
  3. Step 3: Cross multiply
    15,673.48x = 21,630.76 × 8,601.28
  4. Step 4: Simplify right side
    15,673.48x = 186,052,223.37
  5. Step 5: Solve for x
    x = 186,052,223.37/15,673.48
  6. Step 6: Final answer
    x = 11,870.51

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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.