Home / 13,470.54-18,590.22-9,271.50

Finding the Fourth Proportional to 13,470.54, 18,590.22 and 9,271.50

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Solution

The fourth proportional to 13,470.54, 18,590.22 and 9,271.50 is: 12,795.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,470.54 : 18,590.22 = 9,271.50 : x
  2. Step 2: Convert to fraction form
    13,470.54/18,590.22 = 9,271.50/x
  3. Step 3: Cross multiply
    13,470.54x = 18,590.22 × 9,271.50
  4. Step 4: Simplify right side
    13,470.54x = 172,359,224.73
  5. Step 5: Solve for x
    x = 172,359,224.73/13,470.54
  6. Step 6: Final answer
    x = 12,795.27

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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.