Home / 18,739.04-25,858.86-10,355

Finding the Fourth Proportional to 18,739.04, 25,858.86 and 10,355

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Solution

The fourth proportional to 18,739.04, 25,858.86 and 10,355 is: 14,289.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,739.04 : 25,858.86 = 10,355 : x
  2. Step 2: Convert to fraction form
    18,739.04/25,858.86 = 10,355/x
  3. Step 3: Cross multiply
    18,739.04x = 25,858.86 × 10,355
  4. Step 4: Simplify right side
    18,739.04x = 267,768,495.30
  5. Step 5: Solve for x
    x = 267,768,495.30/18,739.04
  6. Step 6: Final answer
    x = 14,289.34

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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.