Home / 15,875.70-21,908.43-8,801.94

Finding the Fourth Proportional to 15,875.70, 21,908.43 and 8,801.94

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Solution

The fourth proportional to 15,875.70, 21,908.43 and 8,801.94 is: 12,146.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,875.70 : 21,908.43 = 8,801.94 : x
  2. Step 2: Convert to fraction form
    15,875.70/21,908.43 = 8,801.94/x
  3. Step 3: Cross multiply
    15,875.70x = 21,908.43 × 8,801.94
  4. Step 4: Simplify right side
    15,875.70x = 192,836,686.35
  5. Step 5: Solve for x
    x = 192,836,686.35/15,875.70
  6. Step 6: Final answer
    x = 12,146.66

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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.