Home / 7,726.72-10,660.08-5,075.56

Finding the Fourth Proportional to 7,726.72, 10,660.08 and 5,075.56

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Solution

The fourth proportional to 7,726.72, 10,660.08 and 5,075.56 is: 7,002.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,726.72 : 10,660.08 = 5,075.56 : x
  2. Step 2: Convert to fraction form
    7,726.72/10,660.08 = 5,075.56/x
  3. Step 3: Cross multiply
    7,726.72x = 10,660.08 × 5,075.56
  4. Step 4: Simplify right side
    7,726.72x = 54,105,875.64
  5. Step 5: Solve for x
    x = 54,105,875.64/7,726.72
  6. Step 6: Final answer
    x = 7,002.44

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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.