Home / 7,220.10-9,941.53-6,155.49

Finding the Fourth Proportional to 7,220.10, 9,941.53 and 6,155.49

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Solution

The fourth proportional to 7,220.10, 9,941.53 and 6,155.49 is: 8,475.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.10 : 9,941.53 = 6,155.49 : x
  2. Step 2: Convert to fraction form
    7,220.10/9,941.53 = 6,155.49/x
  3. Step 3: Cross multiply
    7,220.10x = 9,941.53 × 6,155.49
  4. Step 4: Simplify right side
    7,220.10x = 61,194,988.50
  5. Step 5: Solve for x
    x = 61,194,988.50/7,220.10
  6. Step 6: Final answer
    x = 8,475.64

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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.