Home / 13,013.35-17,953.59-8,539.59

Finding the Fourth Proportional to 13,013.35, 17,953.59 and 8,539.59

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Solution

The fourth proportional to 13,013.35, 17,953.59 and 8,539.59 is: 11,781.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,013.35 : 17,953.59 = 8,539.59 : x
  2. Step 2: Convert to fraction form
    13,013.35/17,953.59 = 8,539.59/x
  3. Step 3: Cross multiply
    13,013.35x = 17,953.59 × 8,539.59
  4. Step 4: Simplify right side
    13,013.35x = 153,316,297.63
  5. Step 5: Solve for x
    x = 153,316,297.63/13,013.35
  6. Step 6: Final answer
    x = 11,781.46

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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.