Home / 15,876.97-21,903.15-10,210.67

Finding the Fourth Proportional to 15,876.97, 21,903.15 and 10,210.67

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Solution

The fourth proportional to 15,876.97, 21,903.15 and 10,210.67 is: 14,086.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,876.97 : 21,903.15 = 10,210.67 : x
  2. Step 2: Convert to fraction form
    15,876.97/21,903.15 = 10,210.67/x
  3. Step 3: Cross multiply
    15,876.97x = 21,903.15 × 10,210.67
  4. Step 4: Simplify right side
    15,876.97x = 223,645,836.61
  5. Step 5: Solve for x
    x = 223,645,836.61/15,876.97
  6. Step 6: Final answer
    x = 14,086.18

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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.