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Finding the Fourth Proportional to 10,153.60, 14,005.03 and 6,621.59

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Solution

The fourth proportional to 10,153.60, 14,005.03 and 6,621.59 is: 9,133.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,153.60 : 14,005.03 = 6,621.59 : x
  2. Step 2: Convert to fraction form
    10,153.60/14,005.03 = 6,621.59/x
  3. Step 3: Cross multiply
    10,153.60x = 14,005.03 × 6,621.59
  4. Step 4: Simplify right side
    10,153.60x = 92,735,566.60
  5. Step 5: Solve for x
    x = 92,735,566.60/10,153.60
  6. Step 6: Final answer
    x = 9,133.27

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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.