Home / 13,518.13-18,655.02-7,550

Finding the Fourth Proportional to 13,518.13, 18,655.02 and 7,550

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Solution

The fourth proportional to 13,518.13, 18,655.02 and 7,550 is: 10,419.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,518.13 : 18,655.02 = 7,550 : x
  2. Step 2: Convert to fraction form
    13,518.13/18,655.02 = 7,550/x
  3. Step 3: Cross multiply
    13,518.13x = 18,655.02 × 7,550
  4. Step 4: Simplify right side
    13,518.13x = 140,845,401
  5. Step 5: Solve for x
    x = 140,845,401/13,518.13
  6. Step 6: Final answer
    x = 10,419.00

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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.