Home / 15,446.67-21,316.52-9,071.55

Finding the Fourth Proportional to 15,446.67, 21,316.52 and 9,071.55

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Solution

The fourth proportional to 15,446.67, 21,316.52 and 9,071.55 is: 12,518.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,446.67 : 21,316.52 = 9,071.55 : x
  2. Step 2: Convert to fraction form
    15,446.67/21,316.52 = 9,071.55/x
  3. Step 3: Cross multiply
    15,446.67x = 21,316.52 × 9,071.55
  4. Step 4: Simplify right side
    15,446.67x = 193,373,831.65
  5. Step 5: Solve for x
    x = 193,373,831.65/15,446.67
  6. Step 6: Final answer
    x = 12,518.80

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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.