Home / 15,222.98-21,009.68-8,510.00

Finding the Fourth Proportional to 15,222.98, 21,009.68 and 8,510.00

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Solution

The fourth proportional to 15,222.98, 21,009.68 and 8,510.00 is: 11,744.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,222.98 : 21,009.68 = 8,510.00 : x
  2. Step 2: Convert to fraction form
    15,222.98/21,009.68 = 8,510.00/x
  3. Step 3: Cross multiply
    15,222.98x = 21,009.68 × 8,510.00
  4. Step 4: Simplify right side
    15,222.98x = 178,792,387.77
  5. Step 5: Solve for x
    x = 178,792,387.77/15,222.98
  6. Step 6: Final answer
    x = 11,744.90

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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.