Home / 15,224.95-21,010.90-8,510.86

Finding the Fourth Proportional to 15,224.95, 21,010.90 and 8,510.86

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Solution

The fourth proportional to 15,224.95, 21,010.90 and 8,510.86 is: 11,745.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,224.95 : 21,010.90 = 8,510.86 : x
  2. Step 2: Convert to fraction form
    15,224.95/21,010.90 = 8,510.86/x
  3. Step 3: Cross multiply
    15,224.95x = 21,010.90 × 8,510.86
  4. Step 4: Simplify right side
    15,224.95x = 178,820,838.80
  5. Step 5: Solve for x
    x = 178,820,838.80/15,224.95
  6. Step 6: Final answer
    x = 11,745.25

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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.