Home / 10,470.06-15,705.23-2,678.85

Finding the Fourth Proportional to 10,470.06, 15,705.23 and 2,678.85

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Solution

The fourth proportional to 10,470.06, 15,705.23 and 2,678.85 is: 4,018.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,470.06 : 15,705.23 = 2,678.85 : x
  2. Step 2: Convert to fraction form
    10,470.06/15,705.23 = 2,678.85/x
  3. Step 3: Cross multiply
    10,470.06x = 15,705.23 × 2,678.85
  4. Step 4: Simplify right side
    10,470.06x = 42,071,941.99
  5. Step 5: Solve for x
    x = 42,071,941.99/10,470.06
  6. Step 6: Final answer
    x = 4,018.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.