Home / 9,719.80-14,579.70-8,699.20

Finding the Fourth Proportional to 9,719.80, 14,579.70 and 8,699.20

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Solution

The fourth proportional to 9,719.80, 14,579.70 and 8,699.20 is: 13,048.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,719.80 : 14,579.70 = 8,699.20 : x
  2. Step 2: Convert to fraction form
    9,719.80/14,579.70 = 8,699.20/x
  3. Step 3: Cross multiply
    9,719.80x = 14,579.70 × 8,699.20
  4. Step 4: Simplify right side
    9,719.80x = 126,831,726.24
  5. Step 5: Solve for x
    x = 126,831,726.24/9,719.80
  6. Step 6: Final answer
    x = 13,048.80

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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.