Home / 13,030.35-17,981.81-7,061.95

Finding the Fourth Proportional to 13,030.35, 17,981.81 and 7,061.95

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Solution

The fourth proportional to 13,030.35, 17,981.81 and 7,061.95 is: 9,745.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,030.35 : 17,981.81 = 7,061.95 : x
  2. Step 2: Convert to fraction form
    13,030.35/17,981.81 = 7,061.95/x
  3. Step 3: Cross multiply
    13,030.35x = 17,981.81 × 7,061.95
  4. Step 4: Simplify right side
    13,030.35x = 126,986,607.82
  5. Step 5: Solve for x
    x = 126,986,607.82/13,030.35
  6. Step 6: Final answer
    x = 9,745.45

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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.