Home / 12,023.93-18,045.20-7,862.81

Finding the Fourth Proportional to 12,023.93, 18,045.20 and 7,862.81

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Solution

The fourth proportional to 12,023.93, 18,045.20 and 7,862.81 is: 11,800.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,023.93 : 18,045.20 = 7,862.81 : x
  2. Step 2: Convert to fraction form
    12,023.93/18,045.20 = 7,862.81/x
  3. Step 3: Cross multiply
    12,023.93x = 18,045.20 × 7,862.81
  4. Step 4: Simplify right side
    12,023.93x = 141,885,979.01
  5. Step 5: Solve for x
    x = 141,885,979.01/12,023.93
  6. Step 6: Final answer
    x = 11,800.30

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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.