Home / 15,645.05-21,586.45-9,512.56

Finding the Fourth Proportional to 15,645.05, 21,586.45 and 9,512.56

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Solution

The fourth proportional to 15,645.05, 21,586.45 and 9,512.56 is: 13,125.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,645.05 : 21,586.45 = 9,512.56 : x
  2. Step 2: Convert to fraction form
    15,645.05/21,586.45 = 9,512.56/x
  3. Step 3: Cross multiply
    15,645.05x = 21,586.45 × 9,512.56
  4. Step 4: Simplify right side
    15,645.05x = 205,342,482.56
  5. Step 5: Solve for x
    x = 205,342,482.56/15,645.05
  6. Step 6: Final answer
    x = 13,125.08

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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.