Home / 15,444.74-21,302.48-9,780.41

Finding the Fourth Proportional to 15,444.74, 21,302.48 and 9,780.41

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Solution

The fourth proportional to 15,444.74, 21,302.48 and 9,780.41 is: 13,489.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,444.74 : 21,302.48 = 9,780.41 : x
  2. Step 2: Convert to fraction form
    15,444.74/21,302.48 = 9,780.41/x
  3. Step 3: Cross multiply
    15,444.74x = 21,302.48 × 9,780.41
  4. Step 4: Simplify right side
    15,444.74x = 208,346,833.00
  5. Step 5: Solve for x
    x = 208,346,833.00/15,444.74
  6. Step 6: Final answer
    x = 13,489.83

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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.