Home / 14,707.12-20,298.72-8,423.68

Finding the Fourth Proportional to 14,707.12, 20,298.72 and 8,423.68

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Solution

The fourth proportional to 14,707.12, 20,298.72 and 8,423.68 is: 11,626.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,707.12 : 20,298.72 = 8,423.68 : x
  2. Step 2: Convert to fraction form
    14,707.12/20,298.72 = 8,423.68/x
  3. Step 3: Cross multiply
    14,707.12x = 20,298.72 × 8,423.68
  4. Step 4: Simplify right side
    14,707.12x = 170,989,921.69
  5. Step 5: Solve for x
    x = 170,989,921.69/14,707.12
  6. Step 6: Final answer
    x = 11,626.34

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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.