Home / 12,942.27-19,365.08-10,840.05

Finding the Fourth Proportional to 12,942.27, 19,365.08 and 10,840.05

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Solution

The fourth proportional to 12,942.27, 19,365.08 and 10,840.05 is: 16,219.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,942.27 : 19,365.08 = 10,840.05 : x
  2. Step 2: Convert to fraction form
    12,942.27/19,365.08 = 10,840.05/x
  3. Step 3: Cross multiply
    12,942.27x = 19,365.08 × 10,840.05
  4. Step 4: Simplify right side
    12,942.27x = 209,918,381.25
  5. Step 5: Solve for x
    x = 209,918,381.25/12,942.27
  6. Step 6: Final answer
    x = 16,219.60

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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.