Home / 7,911.45-10,918.02-4,374.79

Finding the Fourth Proportional to 7,911.45, 10,918.02 and 4,374.79

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Solution

The fourth proportional to 7,911.45, 10,918.02 and 4,374.79 is: 6,037.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,911.45 : 10,918.02 = 4,374.79 : x
  2. Step 2: Convert to fraction form
    7,911.45/10,918.02 = 4,374.79/x
  3. Step 3: Cross multiply
    7,911.45x = 10,918.02 × 4,374.79
  4. Step 4: Simplify right side
    7,911.45x = 47,763,968.25
  5. Step 5: Solve for x
    x = 47,763,968.25/7,911.45
  6. Step 6: Final answer
    x = 6,037.32

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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.