Home / 11,178.51-15,426.75-6,142.94

Finding the Fourth Proportional to 11,178.51, 15,426.75 and 6,142.94

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Solution

The fourth proportional to 11,178.51, 15,426.75 and 6,142.94 is: 8,477.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,178.51 : 15,426.75 = 6,142.94 : x
  2. Step 2: Convert to fraction form
    11,178.51/15,426.75 = 6,142.94/x
  3. Step 3: Cross multiply
    11,178.51x = 15,426.75 × 6,142.94
  4. Step 4: Simplify right side
    11,178.51x = 94,765,603.40
  5. Step 5: Solve for x
    x = 94,765,603.40/11,178.51
  6. Step 6: Final answer
    x = 8,477.48

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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.