Home / 7,370.55-10,154.06-5,128.58

Finding the Fourth Proportional to 7,370.55, 10,154.06 and 5,128.58

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Solution

The fourth proportional to 7,370.55, 10,154.06 and 5,128.58 is: 7,065.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,370.55 : 10,154.06 = 5,128.58 : x
  2. Step 2: Convert to fraction form
    7,370.55/10,154.06 = 5,128.58/x
  3. Step 3: Cross multiply
    7,370.55x = 10,154.06 × 5,128.58
  4. Step 4: Simplify right side
    7,370.55x = 52,075,832.62
  5. Step 5: Solve for x
    x = 52,075,832.62/7,370.55
  6. Step 6: Final answer
    x = 7,065.39

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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.