Home / 18,619.04-25,686.24-10,655.12

Finding the Fourth Proportional to 18,619.04, 25,686.24 and 10,655.12

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Solution

The fourth proportional to 18,619.04, 25,686.24 and 10,655.12 is: 14,699.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,619.04 : 25,686.24 = 10,655.12 : x
  2. Step 2: Convert to fraction form
    18,619.04/25,686.24 = 10,655.12/x
  3. Step 3: Cross multiply
    18,619.04x = 25,686.24 × 10,655.12
  4. Step 4: Simplify right side
    18,619.04x = 273,689,969.55
  5. Step 5: Solve for x
    x = 273,689,969.55/18,619.04
  6. Step 6: Final answer
    x = 14,699.47

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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.