Home / 8,346.48-11,518.20-4,991.28

Finding the Fourth Proportional to 8,346.48, 11,518.20 and 4,991.28

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Solution

The fourth proportional to 8,346.48, 11,518.20 and 4,991.28 is: 6,888.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,346.48 : 11,518.20 = 4,991.28 : x
  2. Step 2: Convert to fraction form
    8,346.48/11,518.20 = 4,991.28/x
  3. Step 3: Cross multiply
    8,346.48x = 11,518.20 × 4,991.28
  4. Step 4: Simplify right side
    8,346.48x = 57,490,561.30
  5. Step 5: Solve for x
    x = 57,490,561.30/8,346.48
  6. Step 6: Final answer
    x = 6,888.00

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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.