Home / 15,573.17-21,493.43-9,902.00

Finding the Fourth Proportional to 15,573.17, 21,493.43 and 9,902.00

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Solution

The fourth proportional to 15,573.17, 21,493.43 and 9,902.00 is: 13,666.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,573.17 : 21,493.43 = 9,902.00 : x
  2. Step 2: Convert to fraction form
    15,573.17/21,493.43 = 9,902.00/x
  3. Step 3: Cross multiply
    15,573.17x = 21,493.43 × 9,902.00
  4. Step 4: Simplify right side
    15,573.17x = 212,827,944.92
  5. Step 5: Solve for x
    x = 212,827,944.92/15,573.17
  6. Step 6: Final answer
    x = 13,666.33

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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.