Home / 10,238.15-14,130.68-6,648.09

Finding the Fourth Proportional to 10,238.15, 14,130.68 and 6,648.09

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Solution

The fourth proportional to 10,238.15, 14,130.68 and 6,648.09 is: 9,175.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,238.15 : 14,130.68 = 6,648.09 : x
  2. Step 2: Convert to fraction form
    10,238.15/14,130.68 = 6,648.09/x
  3. Step 3: Cross multiply
    10,238.15x = 14,130.68 × 6,648.09
  4. Step 4: Simplify right side
    10,238.15x = 93,941,999.16
  5. Step 5: Solve for x
    x = 93,941,999.16/10,238.15
  6. Step 6: Final answer
    x = 9,175.69

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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.