Home / 15,783.66-23,668.61-8,386.34

Finding the Fourth Proportional to 15,783.66, 23,668.61 and 8,386.34

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Solution

The fourth proportional to 15,783.66, 23,668.61 and 8,386.34 is: 12,575.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,783.66 : 23,668.61 = 8,386.34 : x
  2. Step 2: Convert to fraction form
    15,783.66/23,668.61 = 8,386.34/x
  3. Step 3: Cross multiply
    15,783.66x = 23,668.61 × 8,386.34
  4. Step 4: Simplify right side
    15,783.66x = 198,492,850.51
  5. Step 5: Solve for x
    x = 198,492,850.51/15,783.66
  6. Step 6: Final answer
    x = 12,575.84

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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.