Home / 7,475.03-10,315.60-4,288.47

Finding the Fourth Proportional to 7,475.03, 10,315.60 and 4,288.47

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Solution

The fourth proportional to 7,475.03, 10,315.60 and 4,288.47 is: 5,918.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,475.03 : 10,315.60 = 4,288.47 : x
  2. Step 2: Convert to fraction form
    7,475.03/10,315.60 = 4,288.47/x
  3. Step 3: Cross multiply
    7,475.03x = 10,315.60 × 4,288.47
  4. Step 4: Simplify right side
    7,475.03x = 44,238,091.73
  5. Step 5: Solve for x
    x = 44,238,091.73/7,475.03
  6. Step 6: Final answer
    x = 5,918.11

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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.