Home / 13,098.51-18,070.61-8,061.21

Finding the Fourth Proportional to 13,098.51, 18,070.61 and 8,061.21

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Solution

The fourth proportional to 13,098.51, 18,070.61 and 8,061.21 is: 11,121.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,098.51 : 18,070.61 = 8,061.21 : x
  2. Step 2: Convert to fraction form
    13,098.51/18,070.61 = 8,061.21/x
  3. Step 3: Cross multiply
    13,098.51x = 18,070.61 × 8,061.21
  4. Step 4: Simplify right side
    13,098.51x = 145,670,941.73
  5. Step 5: Solve for x
    x = 145,670,941.73/13,098.51
  6. Step 6: Final answer
    x = 11,121.18

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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.