Home / 7,830.32-10,807.57-6,125.45

Finding the Fourth Proportional to 7,830.32, 10,807.57 and 6,125.45

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Solution

The fourth proportional to 7,830.32, 10,807.57 and 6,125.45 is: 8,454.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,830.32 : 10,807.57 = 6,125.45 : x
  2. Step 2: Convert to fraction form
    7,830.32/10,807.57 = 6,125.45/x
  3. Step 3: Cross multiply
    7,830.32x = 10,807.57 × 6,125.45
  4. Step 4: Simplify right side
    7,830.32x = 66,201,196.44
  5. Step 5: Solve for x
    x = 66,201,196.44/7,830.32
  6. Step 6: Final answer
    x = 8,454.47

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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.