Home / 12,476.15-18,708.71-4,679.49

Finding the Fourth Proportional to 12,476.15, 18,708.71 and 4,679.49

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Solution

The fourth proportional to 12,476.15, 18,708.71 and 4,679.49 is: 7,017.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,476.15 : 18,708.71 = 4,679.49 : x
  2. Step 2: Convert to fraction form
    12,476.15/18,708.71 = 4,679.49/x
  3. Step 3: Cross multiply
    12,476.15x = 18,708.71 × 4,679.49
  4. Step 4: Simplify right side
    12,476.15x = 87,547,221.36
  5. Step 5: Solve for x
    x = 87,547,221.36/12,476.15
  6. Step 6: Final answer
    x = 7,017.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.