Home / 18,898.08-26,079.75-10,400.64

Finding the Fourth Proportional to 18,898.08, 26,079.75 and 10,400.64

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Solution

The fourth proportional to 18,898.08, 26,079.75 and 10,400.64 is: 14,353.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,898.08 : 26,079.75 = 10,400.64 : x
  2. Step 2: Convert to fraction form
    18,898.08/26,079.75 = 10,400.64/x
  3. Step 3: Cross multiply
    18,898.08x = 26,079.75 × 10,400.64
  4. Step 4: Simplify right side
    18,898.08x = 271,246,091.04
  5. Step 5: Solve for x
    x = 271,246,091.04/18,898.08
  6. Step 6: Final answer
    x = 14,353.10

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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.