Home / 13,495.14-18,615.13-8,707.59

Finding the Fourth Proportional to 13,495.14, 18,615.13 and 8,707.59

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Solution

The fourth proportional to 13,495.14, 18,615.13 and 8,707.59 is: 12,011.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,495.14 : 18,615.13 = 8,707.59 : x
  2. Step 2: Convert to fraction form
    13,495.14/18,615.13 = 8,707.59/x
  3. Step 3: Cross multiply
    13,495.14x = 18,615.13 × 8,707.59
  4. Step 4: Simplify right side
    13,495.14x = 162,092,898.07
  5. Step 5: Solve for x
    x = 162,092,898.07/13,495.14
  6. Step 6: Final answer
    x = 12,011.21

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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.