Home / 8,432.78-11,637.05-4,655.72

Finding the Fourth Proportional to 8,432.78, 11,637.05 and 4,655.72

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Solution

The fourth proportional to 8,432.78, 11,637.05 and 4,655.72 is: 6,424.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,432.78 : 11,637.05 = 4,655.72 : x
  2. Step 2: Convert to fraction form
    8,432.78/11,637.05 = 4,655.72/x
  3. Step 3: Cross multiply
    8,432.78x = 11,637.05 × 4,655.72
  4. Step 4: Simplify right side
    8,432.78x = 54,178,846.43
  5. Step 5: Solve for x
    x = 54,178,846.43/8,432.78
  6. Step 6: Final answer
    x = 6,424.79

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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.