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Finding the Fourth Proportional to 8,703.93, 12,012.51 and 5,347.18

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Solution

The fourth proportional to 8,703.93, 12,012.51 and 5,347.18 is: 7,379.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,703.93 : 12,012.51 = 5,347.18 : x
  2. Step 2: Convert to fraction form
    8,703.93/12,012.51 = 5,347.18/x
  3. Step 3: Cross multiply
    8,703.93x = 12,012.51 × 5,347.18
  4. Step 4: Simplify right side
    8,703.93x = 64,233,053.22
  5. Step 5: Solve for x
    x = 64,233,053.22/8,703.93
  6. Step 6: Final answer
    x = 7,379.78

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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.