Home / 18,724.14-28,089.09-7,038.18

Finding the Fourth Proportional to 18,724.14, 28,089.09 and 7,038.18

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Solution

The fourth proportional to 18,724.14, 28,089.09 and 7,038.18 is: 10,558.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,724.14 : 28,089.09 = 7,038.18 : x
  2. Step 2: Convert to fraction form
    18,724.14/28,089.09 = 7,038.18/x
  3. Step 3: Cross multiply
    18,724.14x = 28,089.09 × 7,038.18
  4. Step 4: Simplify right side
    18,724.14x = 197,696,071.46
  5. Step 5: Solve for x
    x = 197,696,071.46/18,724.14
  6. Step 6: Final answer
    x = 10,558.35

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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.