Home / 13,243.19-18,274.76-7,577.94

Finding the Fourth Proportional to 13,243.19, 18,274.76 and 7,577.94

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Solution

The fourth proportional to 13,243.19, 18,274.76 and 7,577.94 is: 10,457.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,243.19 : 18,274.76 = 7,577.94 : x
  2. Step 2: Convert to fraction form
    13,243.19/18,274.76 = 7,577.94/x
  3. Step 3: Cross multiply
    13,243.19x = 18,274.76 × 7,577.94
  4. Step 4: Simplify right side
    13,243.19x = 138,484,996.90
  5. Step 5: Solve for x
    x = 138,484,996.90/13,243.19
  6. Step 6: Final answer
    x = 10,457.08

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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.