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Finding the Fourth Proportional to 12,907.08, 17,812.79 and 7,602.93

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Solution

The fourth proportional to 12,907.08, 17,812.79 and 7,602.93 is: 10,492.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,907.08 : 17,812.79 = 7,602.93 : x
  2. Step 2: Convert to fraction form
    12,907.08/17,812.79 = 7,602.93/x
  3. Step 3: Cross multiply
    12,907.08x = 17,812.79 × 7,602.93
  4. Step 4: Simplify right side
    12,907.08x = 135,429,395.47
  5. Step 5: Solve for x
    x = 135,429,395.47/12,907.08
  6. Step 6: Final answer
    x = 10,492.64

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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.