Home / 9,319.08-13,965.44-5,160.99

Finding the Fourth Proportional to 9,319.08, 13,965.44 and 5,160.99

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Solution

The fourth proportional to 9,319.08, 13,965.44 and 5,160.99 is: 7,734.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,319.08 : 13,965.44 = 5,160.99 : x
  2. Step 2: Convert to fraction form
    9,319.08/13,965.44 = 5,160.99/x
  3. Step 3: Cross multiply
    9,319.08x = 13,965.44 × 5,160.99
  4. Step 4: Simplify right side
    9,319.08x = 72,075,470.38
  5. Step 5: Solve for x
    x = 72,075,470.38/9,319.08
  6. Step 6: Final answer
    x = 7,734.18

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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.