Home / 13,238.16-18,287.64-10,582.08

Finding the Fourth Proportional to 13,238.16, 18,287.64 and 10,582.08

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Solution

The fourth proportional to 13,238.16, 18,287.64 and 10,582.08 is: 14,618.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,238.16 : 18,287.64 = 10,582.08 : x
  2. Step 2: Convert to fraction form
    13,238.16/18,287.64 = 10,582.08/x
  3. Step 3: Cross multiply
    13,238.16x = 18,287.64 × 10,582.08
  4. Step 4: Simplify right side
    13,238.16x = 193,521,269.49
  5. Step 5: Solve for x
    x = 193,521,269.49/13,238.16
  6. Step 6: Final answer
    x = 14,618.44

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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.