Home / 15,650.98-21,598.42-8,480.91

Finding the Fourth Proportional to 15,650.98, 21,598.42 and 8,480.91

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Solution

The fourth proportional to 15,650.98, 21,598.42 and 8,480.91 is: 11,703.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,650.98 : 21,598.42 = 8,480.91 : x
  2. Step 2: Convert to fraction form
    15,650.98/21,598.42 = 8,480.91/x
  3. Step 3: Cross multiply
    15,650.98x = 21,598.42 × 8,480.91
  4. Step 4: Simplify right side
    15,650.98x = 183,174,256.16
  5. Step 5: Solve for x
    x = 183,174,256.16/15,650.98
  6. Step 6: Final answer
    x = 11,703.69

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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.