Home / 18,955.10-26,166.78-13,507.64

Finding the Fourth Proportional to 18,955.10, 26,166.78 and 13,507.64

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Solution

The fourth proportional to 18,955.10, 26,166.78 and 13,507.64 is: 18,646.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,955.10 : 26,166.78 = 13,507.64 : x
  2. Step 2: Convert to fraction form
    18,955.10/26,166.78 = 13,507.64/x
  3. Step 3: Cross multiply
    18,955.10x = 26,166.78 × 13,507.64
  4. Step 4: Simplify right side
    18,955.10x = 353,451,444.20
  5. Step 5: Solve for x
    x = 353,451,444.20/18,955.10
  6. Step 6: Final answer
    x = 18,646.77

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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.