Home / 7,828.20-10,802.16-4,684.32

Finding the Fourth Proportional to 7,828.20, 10,802.16 and 4,684.32

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Solution

The fourth proportional to 7,828.20, 10,802.16 and 4,684.32 is: 6,463.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,828.20 : 10,802.16 = 4,684.32 : x
  2. Step 2: Convert to fraction form
    7,828.20/10,802.16 = 4,684.32/x
  3. Step 3: Cross multiply
    7,828.20x = 10,802.16 × 4,684.32
  4. Step 4: Simplify right side
    7,828.20x = 50,600,774.13
  5. Step 5: Solve for x
    x = 50,600,774.13/7,828.20
  6. Step 6: Final answer
    x = 6,463.91

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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.