Home / 15,733.76-21,705.36-10,065.68

Finding the Fourth Proportional to 15,733.76, 21,705.36 and 10,065.68

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Solution

The fourth proportional to 15,733.76, 21,705.36 and 10,065.68 is: 13,886.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,733.76 : 21,705.36 = 10,065.68 : x
  2. Step 2: Convert to fraction form
    15,733.76/21,705.36 = 10,065.68/x
  3. Step 3: Cross multiply
    15,733.76x = 21,705.36 × 10,065.68
  4. Step 4: Simplify right side
    15,733.76x = 218,479,208.04
  5. Step 5: Solve for x
    x = 218,479,208.04/15,733.76
  6. Step 6: Final answer
    x = 13,886.01

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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.