Home / 12,992.10-19,488.29-4,678.07

Finding the Fourth Proportional to 12,992.10, 19,488.29 and 4,678.07

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Solution

The fourth proportional to 12,992.10, 19,488.29 and 4,678.07 is: 7,017.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,992.10 : 19,488.29 = 4,678.07 : x
  2. Step 2: Convert to fraction form
    12,992.10/19,488.29 = 4,678.07/x
  3. Step 3: Cross multiply
    12,992.10x = 19,488.29 × 4,678.07
  4. Step 4: Simplify right side
    12,992.10x = 91,167,463.97
  5. Step 5: Solve for x
    x = 91,167,463.97/12,992.10
  6. Step 6: Final answer
    x = 7,017.15

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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.