Home / 9,315.87-13,974.47-3,075.63

Finding the Fourth Proportional to 9,315.87, 13,974.47 and 3,075.63

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Solution

The fourth proportional to 9,315.87, 13,974.47 and 3,075.63 is: 4,613.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,315.87 : 13,974.47 = 3,075.63 : x
  2. Step 2: Convert to fraction form
    9,315.87/13,974.47 = 3,075.63/x
  3. Step 3: Cross multiply
    9,315.87x = 13,974.47 × 3,075.63
  4. Step 4: Simplify right side
    9,315.87x = 42,980,299.17
  5. Step 5: Solve for x
    x = 42,980,299.17/9,315.87
  6. Step 6: Final answer
    x = 4,613.66

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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.