Home / 13,077.92-18,038.40-8,600.24

Finding the Fourth Proportional to 13,077.92, 18,038.40 and 8,600.24

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Solution

The fourth proportional to 13,077.92, 18,038.40 and 8,600.24 is: 11,862.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,077.92 : 18,038.40 = 8,600.24 : x
  2. Step 2: Convert to fraction form
    13,077.92/18,038.40 = 8,600.24/x
  3. Step 3: Cross multiply
    13,077.92x = 18,038.40 × 8,600.24
  4. Step 4: Simplify right side
    13,077.92x = 155,134,582.06
  5. Step 5: Solve for x
    x = 155,134,582.06/13,077.92
  6. Step 6: Final answer
    x = 11,862.33

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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.