Home / 7,075.14-9,763.56-3,888.51

Finding the Fourth Proportional to 7,075.14, 9,763.56 and 3,888.51

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Solution

The fourth proportional to 7,075.14, 9,763.56 and 3,888.51 is: 5,366.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,075.14 : 9,763.56 = 3,888.51 : x
  2. Step 2: Convert to fraction form
    7,075.14/9,763.56 = 3,888.51/x
  3. Step 3: Cross multiply
    7,075.14x = 9,763.56 × 3,888.51
  4. Step 4: Simplify right side
    7,075.14x = 37,965,700.70
  5. Step 5: Solve for x
    x = 37,965,700.70/7,075.14
  6. Step 6: Final answer
    x = 5,366.07

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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.