Home / 13,744.02-18,966.75-7,775.57

Finding the Fourth Proportional to 13,744.02, 18,966.75 and 7,775.57

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Solution

The fourth proportional to 13,744.02, 18,966.75 and 7,775.57 is: 10,730.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,744.02 : 18,966.75 = 7,775.57 : x
  2. Step 2: Convert to fraction form
    13,744.02/18,966.75 = 7,775.57/x
  3. Step 3: Cross multiply
    13,744.02x = 18,966.75 × 7,775.57
  4. Step 4: Simplify right side
    13,744.02x = 147,477,197.46
  5. Step 5: Solve for x
    x = 147,477,197.46/13,744.02
  6. Step 6: Final answer
    x = 10,730.28

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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.