Home / 11,285.50-15,573.99-6,317.50

Finding the Fourth Proportional to 11,285.50, 15,573.99 and 6,317.50

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Solution

The fourth proportional to 11,285.50, 15,573.99 and 6,317.50 is: 8,718.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,285.50 : 15,573.99 = 6,317.50 : x
  2. Step 2: Convert to fraction form
    11,285.50/15,573.99 = 6,317.50/x
  3. Step 3: Cross multiply
    11,285.50x = 15,573.99 × 6,317.50
  4. Step 4: Simplify right side
    11,285.50x = 98,388,681.83
  5. Step 5: Solve for x
    x = 98,388,681.83/11,285.50
  6. Step 6: Final answer
    x = 8,718.15

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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.