Home / 15,624.07-21,561.48-11,155.41

Finding the Fourth Proportional to 15,624.07, 21,561.48 and 11,155.41

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Solution

The fourth proportional to 15,624.07, 21,561.48 and 11,155.41 is: 15,394.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,624.07 : 21,561.48 = 11,155.41 : x
  2. Step 2: Convert to fraction form
    15,624.07/21,561.48 = 11,155.41/x
  3. Step 3: Cross multiply
    15,624.07x = 21,561.48 × 11,155.41
  4. Step 4: Simplify right side
    15,624.07x = 240,527,149.61
  5. Step 5: Solve for x
    x = 240,527,149.61/15,624.07
  6. Step 6: Final answer
    x = 15,394.65

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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.