Home / 10,662.24-15,980.40-4,810.80

Finding the Fourth Proportional to 10,662.24, 15,980.40 and 4,810.80

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Solution

The fourth proportional to 10,662.24, 15,980.40 and 4,810.80 is: 7,210.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,662.24 : 15,980.40 = 4,810.80 : x
  2. Step 2: Convert to fraction form
    10,662.24/15,980.40 = 4,810.80/x
  3. Step 3: Cross multiply
    10,662.24x = 15,980.40 × 4,810.80
  4. Step 4: Simplify right side
    10,662.24x = 76,878,508.32
  5. Step 5: Solve for x
    x = 76,878,508.32/10,662.24
  6. Step 6: Final answer
    x = 7,210.35

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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.