Home / 13,582.92-18,744.48-8,864.40

Finding the Fourth Proportional to 13,582.92, 18,744.48 and 8,864.40

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Solution

The fourth proportional to 13,582.92, 18,744.48 and 8,864.40 is: 12,232.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,582.92 : 18,744.48 = 8,864.40 : x
  2. Step 2: Convert to fraction form
    13,582.92/18,744.48 = 8,864.40/x
  3. Step 3: Cross multiply
    13,582.92x = 18,744.48 × 8,864.40
  4. Step 4: Simplify right side
    13,582.92x = 166,158,568.51
  5. Step 5: Solve for x
    x = 166,158,568.51/13,582.92
  6. Step 6: Final answer
    x = 12,232.90

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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.