Home / 7,830.99-10,807.26-5,173.74

Finding the Fourth Proportional to 7,830.99, 10,807.26 and 5,173.74

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Solution

The fourth proportional to 7,830.99, 10,807.26 and 5,173.74 is: 7,140.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,830.99 : 10,807.26 = 5,173.74 : x
  2. Step 2: Convert to fraction form
    7,830.99/10,807.26 = 5,173.74/x
  3. Step 3: Cross multiply
    7,830.99x = 10,807.26 × 5,173.74
  4. Step 4: Simplify right side
    7,830.99x = 55,913,873.45
  5. Step 5: Solve for x
    x = 55,913,873.45/7,830.99
  6. Step 6: Final answer
    x = 7,140.08

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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.