Home / 8,139.61-11,234.88-4,783.51

Finding the Fourth Proportional to 8,139.61, 11,234.88 and 4,783.51

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Solution

The fourth proportional to 8,139.61, 11,234.88 and 4,783.51 is: 6,602.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,139.61 : 11,234.88 = 4,783.51 : x
  2. Step 2: Convert to fraction form
    8,139.61/11,234.88 = 4,783.51/x
  3. Step 3: Cross multiply
    8,139.61x = 11,234.88 × 4,783.51
  4. Step 4: Simplify right side
    8,139.61x = 53,742,127.35
  5. Step 5: Solve for x
    x = 53,742,127.35/8,139.61
  6. Step 6: Final answer
    x = 6,602.54

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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.