Home / 10,621.35-14,658.93-6,147.72

Finding the Fourth Proportional to 10,621.35, 14,658.93 and 6,147.72

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Solution

The fourth proportional to 10,621.35, 14,658.93 and 6,147.72 is: 8,484.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,621.35 : 14,658.93 = 6,147.72 : x
  2. Step 2: Convert to fraction form
    10,621.35/14,658.93 = 6,147.72/x
  3. Step 3: Cross multiply
    10,621.35x = 14,658.93 × 6,147.72
  4. Step 4: Simplify right side
    10,621.35x = 90,118,997.14
  5. Step 5: Solve for x
    x = 90,118,997.14/10,621.35
  6. Step 6: Final answer
    x = 8,484.70

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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.