Home / 15,124.29-20,875.86-8,755.19

Finding the Fourth Proportional to 15,124.29, 20,875.86 and 8,755.19

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Solution

The fourth proportional to 15,124.29, 20,875.86 and 8,755.19 is: 12,084.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,124.29 : 20,875.86 = 8,755.19 : x
  2. Step 2: Convert to fraction form
    15,124.29/20,875.86 = 8,755.19/x
  3. Step 3: Cross multiply
    15,124.29x = 20,875.86 × 8,755.19
  4. Step 4: Simplify right side
    15,124.29x = 182,772,016.33
  5. Step 5: Solve for x
    x = 182,772,016.33/15,124.29
  6. Step 6: Final answer
    x = 12,084.67

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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.