Home / 8,678.32-11,977.40-4,903.08

Finding the Fourth Proportional to 8,678.32, 11,977.40 and 4,903.08

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Solution

The fourth proportional to 8,678.32, 11,977.40 and 4,903.08 is: 6,767.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,678.32 : 11,977.40 = 4,903.08 : x
  2. Step 2: Convert to fraction form
    8,678.32/11,977.40 = 4,903.08/x
  3. Step 3: Cross multiply
    8,678.32x = 11,977.40 × 4,903.08
  4. Step 4: Simplify right side
    8,678.32x = 58,726,150.39
  5. Step 5: Solve for x
    x = 58,726,150.39/8,678.32
  6. Step 6: Final answer
    x = 6,767.00

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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.