Home / 15,573.35-21,493.69-9,902.19

Finding the Fourth Proportional to 15,573.35, 21,493.69 and 9,902.19

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Solution

The fourth proportional to 15,573.35, 21,493.69 and 9,902.19 is: 13,666.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,573.35 : 21,493.69 = 9,902.19 : x
  2. Step 2: Convert to fraction form
    15,573.35/21,493.69 = 9,902.19/x
  3. Step 3: Cross multiply
    15,573.35x = 21,493.69 × 9,902.19
  4. Step 4: Simplify right side
    15,573.35x = 212,834,537.12
  5. Step 5: Solve for x
    x = 212,834,537.12/15,573.35
  6. Step 6: Final answer
    x = 13,666.58

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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.