Home / 6,913.12-9,541.20-4,120.24

Finding the Fourth Proportional to 6,913.12, 9,541.20 and 4,120.24

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Solution

The fourth proportional to 6,913.12, 9,541.20 and 4,120.24 is: 5,686.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,913.12 : 9,541.20 = 4,120.24 : x
  2. Step 2: Convert to fraction form
    6,913.12/9,541.20 = 4,120.24/x
  3. Step 3: Cross multiply
    6,913.12x = 9,541.20 × 4,120.24
  4. Step 4: Simplify right side
    6,913.12x = 39,312,033.89
  5. Step 5: Solve for x
    x = 39,312,033.89/6,913.12
  6. Step 6: Final answer
    x = 5,686.58

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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.