Home / 12,981.40-17,914.33-7,013.07

Finding the Fourth Proportional to 12,981.40, 17,914.33 and 7,013.07

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Solution

The fourth proportional to 12,981.40, 17,914.33 and 7,013.07 is: 9,678.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,981.40 : 17,914.33 = 7,013.07 : x
  2. Step 2: Convert to fraction form
    12,981.40/17,914.33 = 7,013.07/x
  3. Step 3: Cross multiply
    12,981.40x = 17,914.33 × 7,013.07
  4. Step 4: Simplify right side
    12,981.40x = 125,634,450.29
  5. Step 5: Solve for x
    x = 125,634,450.29/12,981.40
  6. Step 6: Final answer
    x = 9,678.04

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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.