Home / 15,470.12-21,349.28-8,755.67

Finding the Fourth Proportional to 15,470.12, 21,349.28 and 8,755.67

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Solution

The fourth proportional to 15,470.12, 21,349.28 and 8,755.67 is: 12,083.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,470.12 : 21,349.28 = 8,755.67 : x
  2. Step 2: Convert to fraction form
    15,470.12/21,349.28 = 8,755.67/x
  3. Step 3: Cross multiply
    15,470.12x = 21,349.28 × 8,755.67
  4. Step 4: Simplify right side
    15,470.12x = 186,927,325.68
  5. Step 5: Solve for x
    x = 186,927,325.68/15,470.12
  6. Step 6: Final answer
    x = 12,083.12

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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.