Home / 10,231.36-14,106.36-6,688.96

Finding the Fourth Proportional to 10,231.36, 14,106.36 and 6,688.96

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Solution

The fourth proportional to 10,231.36, 14,106.36 and 6,688.96 is: 9,222.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,231.36 : 14,106.36 = 6,688.96 : x
  2. Step 2: Convert to fraction form
    10,231.36/14,106.36 = 6,688.96/x
  3. Step 3: Cross multiply
    10,231.36x = 14,106.36 × 6,688.96
  4. Step 4: Simplify right side
    10,231.36x = 94,356,877.79
  5. Step 5: Solve for x
    x = 94,356,877.79/10,231.36
  6. Step 6: Final answer
    x = 9,222.32

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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.