Home / 13,767.57-18,988.02-8,460.45

Finding the Fourth Proportional to 13,767.57, 18,988.02 and 8,460.45

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Solution

The fourth proportional to 13,767.57, 18,988.02 and 8,460.45 is: 11,668.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,767.57 : 18,988.02 = 8,460.45 : x
  2. Step 2: Convert to fraction form
    13,767.57/18,988.02 = 8,460.45/x
  3. Step 3: Cross multiply
    13,767.57x = 18,988.02 × 8,460.45
  4. Step 4: Simplify right side
    13,767.57x = 160,647,193.81
  5. Step 5: Solve for x
    x = 160,647,193.81/13,767.57
  6. Step 6: Final answer
    x = 11,668.52

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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.