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Finding the Fourth Proportional to 7,644.76, 10,544.02 and 5,129.68

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Solution

The fourth proportional to 7,644.76, 10,544.02 and 5,129.68 is: 7,075.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,644.76 : 10,544.02 = 5,129.68 : x
  2. Step 2: Convert to fraction form
    7,644.76/10,544.02 = 5,129.68/x
  3. Step 3: Cross multiply
    7,644.76x = 10,544.02 × 5,129.68
  4. Step 4: Simplify right side
    7,644.76x = 54,087,448.51
  5. Step 5: Solve for x
    x = 54,087,448.51/7,644.76
  6. Step 6: Final answer
    x = 7,075.10

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Half scale
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Double 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.