Home / 9,315.06-13,961.16-4,378.08

Finding the Fourth Proportional to 9,315.06, 13,961.16 and 4,378.08

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Solution

The fourth proportional to 9,315.06, 13,961.16 and 4,378.08 is: 6,561.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,315.06 : 13,961.16 = 4,378.08 : x
  2. Step 2: Convert to fraction form
    9,315.06/13,961.16 = 4,378.08/x
  3. Step 3: Cross multiply
    9,315.06x = 13,961.16 × 4,378.08
  4. Step 4: Simplify right side
    9,315.06x = 61,123,075.37
  5. Step 5: Solve for x
    x = 61,123,075.37/9,315.06
  6. Step 6: Final answer
    x = 6,561.75

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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.