Home / 7,900.24-10,905.06-4,918.63

Finding the Fourth Proportional to 7,900.24, 10,905.06 and 4,918.63

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Solution

The fourth proportional to 7,900.24, 10,905.06 and 4,918.63 is: 6,789.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,900.24 : 10,905.06 = 4,918.63 : x
  2. Step 2: Convert to fraction form
    7,900.24/10,905.06 = 4,918.63/x
  3. Step 3: Cross multiply
    7,900.24x = 10,905.06 × 4,918.63
  4. Step 4: Simplify right side
    7,900.24x = 53,637,955.27
  5. Step 5: Solve for x
    x = 53,637,955.27/7,900.24
  6. Step 6: Final answer
    x = 6,789.41

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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.