Home / 15,390.72-23,087.76-6,626.40

Finding the Fourth Proportional to 15,390.72, 23,087.76 and 6,626.40

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Solution

The fourth proportional to 15,390.72, 23,087.76 and 6,626.40 is: 9,940.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,390.72 : 23,087.76 = 6,626.40 : x
  2. Step 2: Convert to fraction form
    15,390.72/23,087.76 = 6,626.40/x
  3. Step 3: Cross multiply
    15,390.72x = 23,087.76 × 6,626.40
  4. Step 4: Simplify right side
    15,390.72x = 152,988,732.86
  5. Step 5: Solve for x
    x = 152,988,732.86/15,390.72
  6. Step 6: Final answer
    x = 9,940.32

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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.