Home / 12,573.23-18,864.50-5,178.33

Finding the Fourth Proportional to 12,573.23, 18,864.50 and 5,178.33

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Solution

The fourth proportional to 12,573.23, 18,864.50 and 5,178.33 is: 7,769.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,573.23 : 18,864.50 = 5,178.33 : x
  2. Step 2: Convert to fraction form
    12,573.23/18,864.50 = 5,178.33/x
  3. Step 3: Cross multiply
    12,573.23x = 18,864.50 × 5,178.33
  4. Step 4: Simplify right side
    12,573.23x = 97,686,580.39
  5. Step 5: Solve for x
    x = 97,686,580.39/12,573.23
  6. Step 6: Final answer
    x = 7,769.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.