Home / 12,457.48-18,680.08-5,434.46

Finding the Fourth Proportional to 12,457.48, 18,680.08 and 5,434.46

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Solution

The fourth proportional to 12,457.48, 18,680.08 and 5,434.46 is: 8,149.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457.48 : 18,680.08 = 5,434.46 : x
  2. Step 2: Convert to fraction form
    12,457.48/18,680.08 = 5,434.46/x
  3. Step 3: Cross multiply
    12,457.48x = 18,680.08 × 5,434.46
  4. Step 4: Simplify right side
    12,457.48x = 101,516,147.56
  5. Step 5: Solve for x
    x = 101,516,147.56/12,457.48
  6. Step 6: Final answer
    x = 8,149.01

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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.