Home / 13,436.34-18,543.30-7,467.84

Finding the Fourth Proportional to 13,436.34, 18,543.30 and 7,467.84

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Solution

The fourth proportional to 13,436.34, 18,543.30 and 7,467.84 is: 10,306.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,436.34 : 18,543.30 = 7,467.84 : x
  2. Step 2: Convert to fraction form
    13,436.34/18,543.30 = 7,467.84/x
  3. Step 3: Cross multiply
    13,436.34x = 18,543.30 × 7,467.84
  4. Step 4: Simplify right side
    13,436.34x = 138,478,397.47
  5. Step 5: Solve for x
    x = 138,478,397.47/13,436.34
  6. Step 6: Final answer
    x = 10,306.26

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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.