Home / 9,707.81-14,561.85-2,782.31

Finding the Fourth Proportional to 9,707.81, 14,561.85 and 2,782.31

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Solution

The fourth proportional to 9,707.81, 14,561.85 and 2,782.31 is: 4,173.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,707.81 : 14,561.85 = 2,782.31 : x
  2. Step 2: Convert to fraction form
    9,707.81/14,561.85 = 2,782.31/x
  3. Step 3: Cross multiply
    9,707.81x = 14,561.85 × 2,782.31
  4. Step 4: Simplify right side
    9,707.81x = 40,515,580.87
  5. Step 5: Solve for x
    x = 40,515,580.87/9,707.81
  6. Step 6: Final answer
    x = 4,173.50

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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.