Home / 12,448.40-17,178.54-6,783.08

Finding the Fourth Proportional to 12,448.40, 17,178.54 and 6,783.08

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Solution

The fourth proportional to 12,448.40, 17,178.54 and 6,783.08 is: 9,360.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,448.40 : 17,178.54 = 6,783.08 : x
  2. Step 2: Convert to fraction form
    12,448.40/17,178.54 = 6,783.08/x
  3. Step 3: Cross multiply
    12,448.40x = 17,178.54 × 6,783.08
  4. Step 4: Simplify right side
    12,448.40x = 116,523,325.21
  5. Step 5: Solve for x
    x = 116,523,325.21/12,448.40
  6. Step 6: Final answer
    x = 9,360.51

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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.