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Finding the Fourth Proportional to 12,605.93, 17,395.12 and 7,430.98

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Solution

The fourth proportional to 12,605.93, 17,395.12 and 7,430.98 is: 10,254.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,605.93 : 17,395.12 = 7,430.98 : x
  2. Step 2: Convert to fraction form
    12,605.93/17,395.12 = 7,430.98/x
  3. Step 3: Cross multiply
    12,605.93x = 17,395.12 × 7,430.98
  4. Step 4: Simplify right side
    12,605.93x = 129,262,788.82
  5. Step 5: Solve for x
    x = 129,262,788.82/12,605.93
  6. Step 6: Final answer
    x = 10,254.13

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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.