Home / 15,242.67-21,037.59-8,872.47

Finding the Fourth Proportional to 15,242.67, 21,037.59 and 8,872.47

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Solution

The fourth proportional to 15,242.67, 21,037.59 and 8,872.47 is: 12,245.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,242.67 : 21,037.59 = 8,872.47 : x
  2. Step 2: Convert to fraction form
    15,242.67/21,037.59 = 8,872.47/x
  3. Step 3: Cross multiply
    15,242.67x = 21,037.59 × 8,872.47
  4. Step 4: Simplify right side
    15,242.67x = 186,655,386.15
  5. Step 5: Solve for x
    x = 186,655,386.15/15,242.67
  6. Step 6: Final answer
    x = 12,245.58

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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.