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Finding the Fourth Proportional to 12,602.68, 18,903.65 and 5,201.51

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Solution

The fourth proportional to 12,602.68, 18,903.65 and 5,201.51 is: 7,802.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,602.68 : 18,903.65 = 5,201.51 : x
  2. Step 2: Convert to fraction form
    12,602.68/18,903.65 = 5,201.51/x
  3. Step 3: Cross multiply
    12,602.68x = 18,903.65 × 5,201.51
  4. Step 4: Simplify right side
    12,602.68x = 98,327,403.99
  5. Step 5: Solve for x
    x = 98,327,403.99/12,602.68
  6. Step 6: Final answer
    x = 7,802.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.