Home / 7,147.83-10,719.47-6,681.39

Finding the Fourth Proportional to 7,147.83, 10,719.47 and 6,681.39

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Solution

The fourth proportional to 7,147.83, 10,719.47 and 6,681.39 is: 10,019.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,147.83 : 10,719.47 = 6,681.39 : x
  2. Step 2: Convert to fraction form
    7,147.83/10,719.47 = 6,681.39/x
  3. Step 3: Cross multiply
    7,147.83x = 10,719.47 × 6,681.39
  4. Step 4: Simplify right side
    7,147.83x = 71,620,926.26
  5. Step 5: Solve for x
    x = 71,620,926.26/7,147.83
  6. Step 6: Final answer
    x = 10,019.95

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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.