Home / 14,225.18-21,352.80-7,990.52

Finding the Fourth Proportional to 14,225.18, 21,352.80 and 7,990.52

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Solution

The fourth proportional to 14,225.18, 21,352.80 and 7,990.52 is: 11,994.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,225.18 : 21,352.80 = 7,990.52 : x
  2. Step 2: Convert to fraction form
    14,225.18/21,352.80 = 7,990.52/x
  3. Step 3: Cross multiply
    14,225.18x = 21,352.80 × 7,990.52
  4. Step 4: Simplify right side
    14,225.18x = 170,619,975.46
  5. Step 5: Solve for x
    x = 170,619,975.46/14,225.18
  6. Step 6: Final answer
    x = 11,994.22

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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.