Home / 13,341.20-18,412.46-7,752.20

Finding the Fourth Proportional to 13,341.20, 18,412.46 and 7,752.20

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Solution

The fourth proportional to 13,341.20, 18,412.46 and 7,752.20 is: 10,698.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,341.20 : 18,412.46 = 7,752.20 : x
  2. Step 2: Convert to fraction form
    13,341.20/18,412.46 = 7,752.20/x
  3. Step 3: Cross multiply
    13,341.20x = 18,412.46 × 7,752.20
  4. Step 4: Simplify right side
    13,341.20x = 142,736,941.59
  5. Step 5: Solve for x
    x = 142,736,941.59/13,341.20
  6. Step 6: Final answer
    x = 10,698.96

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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.