Home / 12,430.36-18,648.61-5,855.01

Finding the Fourth Proportional to 12,430.36, 18,648.61 and 5,855.01

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Solution

The fourth proportional to 12,430.36, 18,648.61 and 5,855.01 is: 8,783.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,430.36 : 18,648.61 = 5,855.01 : x
  2. Step 2: Convert to fraction form
    12,430.36/18,648.61 = 5,855.01/x
  3. Step 3: Cross multiply
    12,430.36x = 18,648.61 × 5,855.01
  4. Step 4: Simplify right side
    12,430.36x = 109,187,798.04
  5. Step 5: Solve for x
    x = 109,187,798.04/12,430.36
  6. Step 6: Final answer
    x = 8,783.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.