Home / 11,148.56-15,385.49-6,671.45

Finding the Fourth Proportional to 11,148.56, 15,385.49 and 6,671.45

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Solution

The fourth proportional to 11,148.56, 15,385.49 and 6,671.45 is: 9,206.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,148.56 : 15,385.49 = 6,671.45 : x
  2. Step 2: Convert to fraction form
    11,148.56/15,385.49 = 6,671.45/x
  3. Step 3: Cross multiply
    11,148.56x = 15,385.49 × 6,671.45
  4. Step 4: Simplify right side
    11,148.56x = 102,643,582.40
  5. Step 5: Solve for x
    x = 102,643,582.40/11,148.56
  6. Step 6: Final answer
    x = 9,206.89

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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.