Home / 10,239.21-14,129.57-5,762.81

Finding the Fourth Proportional to 10,239.21, 14,129.57 and 5,762.81

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Solution

The fourth proportional to 10,239.21, 14,129.57 and 5,762.81 is: 7,952.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,239.21 : 14,129.57 = 5,762.81 : x
  2. Step 2: Convert to fraction form
    10,239.21/14,129.57 = 5,762.81/x
  3. Step 3: Cross multiply
    10,239.21x = 14,129.57 × 5,762.81
  4. Step 4: Simplify right side
    10,239.21x = 81,426,077.02
  5. Step 5: Solve for x
    x = 81,426,077.02/10,239.21
  6. Step 6: Final answer
    x = 7,952.38

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Half scale
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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.