Home / 7,129.59-9,838.58-5,036.55

Finding the Fourth Proportional to 7,129.59, 9,838.58 and 5,036.55

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Solution

The fourth proportional to 7,129.59, 9,838.58 and 5,036.55 is: 6,950.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,129.59 : 9,838.58 = 5,036.55 : x
  2. Step 2: Convert to fraction form
    7,129.59/9,838.58 = 5,036.55/x
  3. Step 3: Cross multiply
    7,129.59x = 9,838.58 × 5,036.55
  4. Step 4: Simplify right side
    7,129.59x = 49,552,474.92
  5. Step 5: Solve for x
    x = 49,552,474.92/7,129.59
  6. Step 6: Final answer
    x = 6,950.26

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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.