Home / 15,503.76-21,405.06-10,207.71

Finding the Fourth Proportional to 15,503.76, 21,405.06 and 10,207.71

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Solution

The fourth proportional to 15,503.76, 21,405.06 and 10,207.71 is: 14,093.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,503.76 : 21,405.06 = 10,207.71 : x
  2. Step 2: Convert to fraction form
    15,503.76/21,405.06 = 10,207.71/x
  3. Step 3: Cross multiply
    15,503.76x = 21,405.06 × 10,207.71
  4. Step 4: Simplify right side
    15,503.76x = 218,496,645.01
  5. Step 5: Solve for x
    x = 218,496,645.01/15,503.76
  6. Step 6: Final answer
    x = 14,093.14

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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.