Home / 13,002.31-17,947.74-8,285.68

Finding the Fourth Proportional to 13,002.31, 17,947.74 and 8,285.68

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Solution

The fourth proportional to 13,002.31, 17,947.74 and 8,285.68 is: 11,437.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,002.31 : 17,947.74 = 8,285.68 : x
  2. Step 2: Convert to fraction form
    13,002.31/17,947.74 = 8,285.68/x
  3. Step 3: Cross multiply
    13,002.31x = 17,947.74 × 8,285.68
  4. Step 4: Simplify right side
    13,002.31x = 148,709,230.36
  5. Step 5: Solve for x
    x = 148,709,230.36/13,002.31
  6. Step 6: Final answer
    x = 11,437.14

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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.