Home / 8,786.16-12,124.96-4,807.28

Finding the Fourth Proportional to 8,786.16, 12,124.96 and 4,807.28

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Solution

The fourth proportional to 8,786.16, 12,124.96 and 4,807.28 is: 6,634.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,786.16 : 12,124.96 = 4,807.28 : x
  2. Step 2: Convert to fraction form
    8,786.16/12,124.96 = 4,807.28/x
  3. Step 3: Cross multiply
    8,786.16x = 12,124.96 × 4,807.28
  4. Step 4: Simplify right side
    8,786.16x = 58,288,077.71
  5. Step 5: Solve for x
    x = 58,288,077.71/8,786.16
  6. Step 6: Final answer
    x = 6,634.08

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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.