Home / 13,445.76-18,572.58-11,576.28

Finding the Fourth Proportional to 13,445.76, 18,572.58 and 11,576.28

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Solution

The fourth proportional to 13,445.76, 18,572.58 and 11,576.28 is: 15,990.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,445.76 : 18,572.58 = 11,576.28 : x
  2. Step 2: Convert to fraction form
    13,445.76/18,572.58 = 11,576.28/x
  3. Step 3: Cross multiply
    13,445.76x = 18,572.58 × 11,576.28
  4. Step 4: Simplify right side
    13,445.76x = 215,001,386.40
  5. Step 5: Solve for x
    x = 215,001,386.40/13,445.76
  6. Step 6: Final answer
    x = 15,990.27

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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.