Home / 7,121.10-10,675.56-5,034.54

Finding the Fourth Proportional to 7,121.10, 10,675.56 and 5,034.54

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Solution

The fourth proportional to 7,121.10, 10,675.56 and 5,034.54 is: 7,547.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,121.10 : 10,675.56 = 5,034.54 : x
  2. Step 2: Convert to fraction form
    7,121.10/10,675.56 = 5,034.54/x
  3. Step 3: Cross multiply
    7,121.10x = 10,675.56 × 5,034.54
  4. Step 4: Simplify right side
    7,121.10x = 53,746,533.84
  5. Step 5: Solve for x
    x = 53,746,533.84/7,121.10
  6. Step 6: Final answer
    x = 7,547.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.