Home / 14,115.49-19,479.44-7,827.86

Finding the Fourth Proportional to 14,115.49, 19,479.44 and 7,827.86

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Solution

The fourth proportional to 14,115.49, 19,479.44 and 7,827.86 is: 10,802.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,115.49 : 19,479.44 = 7,827.86 : x
  2. Step 2: Convert to fraction form
    14,115.49/19,479.44 = 7,827.86/x
  3. Step 3: Cross multiply
    14,115.49x = 19,479.44 × 7,827.86
  4. Step 4: Simplify right side
    14,115.49x = 152,482,329.20
  5. Step 5: Solve for x
    x = 152,482,329.20/14,115.49
  6. Step 6: Final answer
    x = 10,802.48

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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.