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Finding the Fourth Proportional to 12,707.82, 17,536.93 and 7,403.13

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Solution

The fourth proportional to 12,707.82, 17,536.93 and 7,403.13 is: 10,216.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,707.82 : 17,536.93 = 7,403.13 : x
  2. Step 2: Convert to fraction form
    12,707.82/17,536.93 = 7,403.13/x
  3. Step 3: Cross multiply
    12,707.82x = 17,536.93 × 7,403.13
  4. Step 4: Simplify right side
    12,707.82x = 129,828,154.08
  5. Step 5: Solve for x
    x = 129,828,154.08/12,707.82
  6. Step 6: Final answer
    x = 10,216.40

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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.