Home / 14,115.38-19,480.10-7,827.76

Finding the Fourth Proportional to 14,115.38, 19,480.10 and 7,827.76

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Solution

The fourth proportional to 14,115.38, 19,480.10 and 7,827.76 is: 10,802.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,115.38 : 19,480.10 = 7,827.76 : x
  2. Step 2: Convert to fraction form
    14,115.38/19,480.10 = 7,827.76/x
  3. Step 3: Cross multiply
    14,115.38x = 19,480.10 × 7,827.76
  4. Step 4: Simplify right side
    14,115.38x = 152,485,547.58
  5. Step 5: Solve for x
    x = 152,485,547.58/14,115.38
  6. Step 6: Final answer
    x = 10,802.79

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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.