Home / 15,717.40-21,666.82-10,051.48

Finding the Fourth Proportional to 15,717.40, 21,666.82 and 10,051.48

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Solution

The fourth proportional to 15,717.40, 21,666.82 and 10,051.48 is: 13,856.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,717.40 : 21,666.82 = 10,051.48 : x
  2. Step 2: Convert to fraction form
    15,717.40/21,666.82 = 10,051.48/x
  3. Step 3: Cross multiply
    15,717.40x = 21,666.82 × 10,051.48
  4. Step 4: Simplify right side
    15,717.40x = 217,783,607.89
  5. Step 5: Solve for x
    x = 217,783,607.89/15,717.40
  6. Step 6: Final answer
    x = 13,856.21

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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.