Home / 7,678.80-10,590.12-5,997.60

Finding the Fourth Proportional to 7,678.80, 10,590.12 and 5,997.60

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Solution

The fourth proportional to 7,678.80, 10,590.12 and 5,997.60 is: 8,271.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,678.80 : 10,590.12 = 5,997.60 : x
  2. Step 2: Convert to fraction form
    7,678.80/10,590.12 = 5,997.60/x
  3. Step 3: Cross multiply
    7,678.80x = 10,590.12 × 5,997.60
  4. Step 4: Simplify right side
    7,678.80x = 63,515,303.71
  5. Step 5: Solve for x
    x = 63,515,303.71/7,678.80
  6. Step 6: Final answer
    x = 8,271.51

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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.