Home / 7,670.36-11,497.78-2,987.46

Finding the Fourth Proportional to 7,670.36, 11,497.78 and 2,987.46

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Solution

The fourth proportional to 7,670.36, 11,497.78 and 2,987.46 is: 4,478.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,670.36 : 11,497.78 = 2,987.46 : x
  2. Step 2: Convert to fraction form
    7,670.36/11,497.78 = 2,987.46/x
  3. Step 3: Cross multiply
    7,670.36x = 11,497.78 × 2,987.46
  4. Step 4: Simplify right side
    7,670.36x = 34,349,157.84
  5. Step 5: Solve for x
    x = 34,349,157.84/7,670.36
  6. Step 6: Final answer
    x = 4,478.17

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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.