Home / 7,911.63-10,918.67-4,375.17

Finding the Fourth Proportional to 7,911.63, 10,918.67 and 4,375.17

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Solution

The fourth proportional to 7,911.63, 10,918.67 and 4,375.17 is: 6,038.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,911.63 : 10,918.67 = 4,375.17 : x
  2. Step 2: Convert to fraction form
    7,911.63/10,918.67 = 4,375.17/x
  3. Step 3: Cross multiply
    7,911.63x = 10,918.67 × 4,375.17
  4. Step 4: Simplify right side
    7,911.63x = 47,771,015.55
  5. Step 5: Solve for x
    x = 47,771,015.55/7,911.63
  6. Step 6: Final answer
    x = 6,038.08

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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.