Home / 7,157.75-9,877.70-4,364.87

Finding the Fourth Proportional to 7,157.75, 9,877.70 and 4,364.87

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Solution

The fourth proportional to 7,157.75, 9,877.70 and 4,364.87 is: 6,023.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,157.75 : 9,877.70 = 4,364.87 : x
  2. Step 2: Convert to fraction form
    7,157.75/9,877.70 = 4,364.87/x
  3. Step 3: Cross multiply
    7,157.75x = 9,877.70 × 4,364.87
  4. Step 4: Simplify right side
    7,157.75x = 43,114,876.40
  5. Step 5: Solve for x
    x = 43,114,876.40/7,157.75
  6. Step 6: Final answer
    x = 6,023.52

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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.