Home / 15,710.45-21,681.66-8,998.19

Finding the Fourth Proportional to 15,710.45, 21,681.66 and 8,998.19

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Solution

The fourth proportional to 15,710.45, 21,681.66 and 8,998.19 is: 12,418.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,710.45 : 21,681.66 = 8,998.19 : x
  2. Step 2: Convert to fraction form
    15,710.45/21,681.66 = 8,998.19/x
  3. Step 3: Cross multiply
    15,710.45x = 21,681.66 × 8,998.19
  4. Step 4: Simplify right side
    15,710.45x = 195,095,587.79
  5. Step 5: Solve for x
    x = 195,095,587.79/15,710.45
  6. Step 6: Final answer
    x = 12,418.21

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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.