Home / 8,647.56-11,933.87-5,290.31

Finding the Fourth Proportional to 8,647.56, 11,933.87 and 5,290.31

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Solution

The fourth proportional to 8,647.56, 11,933.87 and 5,290.31 is: 7,300.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,647.56 : 11,933.87 = 5,290.31 : x
  2. Step 2: Convert to fraction form
    8,647.56/11,933.87 = 5,290.31/x
  3. Step 3: Cross multiply
    8,647.56x = 11,933.87 × 5,290.31
  4. Step 4: Simplify right side
    8,647.56x = 63,133,875.18
  5. Step 5: Solve for x
    x = 63,133,875.18/8,647.56
  6. Step 6: Final answer
    x = 7,300.77

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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.