Home / 15,466.36-21,343.67-8,392.81

Finding the Fourth Proportional to 15,466.36, 21,343.67 and 8,392.81

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Solution

The fourth proportional to 15,466.36, 21,343.67 and 8,392.81 is: 11,582.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,466.36 : 21,343.67 = 8,392.81 : x
  2. Step 2: Convert to fraction form
    15,466.36/21,343.67 = 8,392.81/x
  3. Step 3: Cross multiply
    15,466.36x = 21,343.67 × 8,392.81
  4. Step 4: Simplify right side
    15,466.36x = 179,133,367.01
  5. Step 5: Solve for x
    x = 179,133,367.01/15,466.36
  6. Step 6: Final answer
    x = 11,582.13

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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.