Home / 12,041.28-16,620.81-8,457.10

Finding the Fourth Proportional to 12,041.28, 16,620.81 and 8,457.10

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Solution

The fourth proportional to 12,041.28, 16,620.81 and 8,457.10 is: 11,673.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,041.28 : 16,620.81 = 8,457.10 : x
  2. Step 2: Convert to fraction form
    12,041.28/16,620.81 = 8,457.10/x
  3. Step 3: Cross multiply
    12,041.28x = 16,620.81 × 8,457.10
  4. Step 4: Simplify right side
    12,041.28x = 140,563,810.70
  5. Step 5: Solve for x
    x = 140,563,810.70/12,041.28
  6. Step 6: Final answer
    x = 11,673.49

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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.