Home / 7,509.57-10,357.47-4,990.89

Finding the Fourth Proportional to 7,509.57, 10,357.47 and 4,990.89

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Solution

The fourth proportional to 7,509.57, 10,357.47 and 4,990.89 is: 6,883.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,509.57 : 10,357.47 = 4,990.89 : x
  2. Step 2: Convert to fraction form
    7,509.57/10,357.47 = 4,990.89/x
  3. Step 3: Cross multiply
    7,509.57x = 10,357.47 × 4,990.89
  4. Step 4: Simplify right side
    7,509.57x = 51,692,993.45
  5. Step 5: Solve for x
    x = 51,692,993.45/7,509.57
  6. Step 6: Final answer
    x = 6,883.62

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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.