Home / 10,628.36-14,666.40-5,912.12

Finding the Fourth Proportional to 10,628.36, 14,666.40 and 5,912.12

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Solution

The fourth proportional to 10,628.36, 14,666.40 and 5,912.12 is: 8,158.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,628.36 : 14,666.40 = 5,912.12 : x
  2. Step 2: Convert to fraction form
    10,628.36/14,666.40 = 5,912.12/x
  3. Step 3: Cross multiply
    10,628.36x = 14,666.40 × 5,912.12
  4. Step 4: Simplify right side
    10,628.36x = 86,709,516.77
  5. Step 5: Solve for x
    x = 86,709,516.77/10,628.36
  6. Step 6: Final answer
    x = 8,158.32

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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.