Home / 9,274.87-12,799.95-5,240.30

Finding the Fourth Proportional to 9,274.87, 12,799.95 and 5,240.30

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Solution

The fourth proportional to 9,274.87, 12,799.95 and 5,240.30 is: 7,231.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,274.87 : 12,799.95 = 5,240.30 : x
  2. Step 2: Convert to fraction form
    9,274.87/12,799.95 = 5,240.30/x
  3. Step 3: Cross multiply
    9,274.87x = 12,799.95 × 5,240.30
  4. Step 4: Simplify right side
    9,274.87x = 67,075,595.81
  5. Step 5: Solve for x
    x = 67,075,595.81/9,274.87
  6. Step 6: Final answer
    x = 7,231.97

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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.