Home / 13,247.49-18,281.48-7,582.21

Finding the Fourth Proportional to 13,247.49, 18,281.48 and 7,582.21

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Solution

The fourth proportional to 13,247.49, 18,281.48 and 7,582.21 is: 10,463.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,247.49 : 18,281.48 = 7,582.21 : x
  2. Step 2: Convert to fraction form
    13,247.49/18,281.48 = 7,582.21/x
  3. Step 3: Cross multiply
    13,247.49x = 18,281.48 × 7,582.21
  4. Step 4: Simplify right side
    13,247.49x = 138,614,020.47
  5. Step 5: Solve for x
    x = 138,614,020.47/13,247.49
  6. Step 6: Final answer
    x = 10,463.42

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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.