Home / 15,108.10-20,852.16-9,653.68

Finding the Fourth Proportional to 15,108.10, 20,852.16 and 9,653.68

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Solution

The fourth proportional to 15,108.10, 20,852.16 and 9,653.68 is: 13,323.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,108.10 : 20,852.16 = 9,653.68 : x
  2. Step 2: Convert to fraction form
    15,108.10/20,852.16 = 9,653.68/x
  3. Step 3: Cross multiply
    15,108.10x = 20,852.16 × 9,653.68
  4. Step 4: Simplify right side
    15,108.10x = 201,300,079.95
  5. Step 5: Solve for x
    x = 201,300,079.95/15,108.10
  6. Step 6: Final answer
    x = 13,323.98

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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.