Home / 13,535.48-18,680.68-7,568.36

Finding the Fourth Proportional to 13,535.48, 18,680.68 and 7,568.36

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Solution

The fourth proportional to 13,535.48, 18,680.68 and 7,568.36 is: 10,445.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,535.48 : 18,680.68 = 7,568.36 : x
  2. Step 2: Convert to fraction form
    13,535.48/18,680.68 = 7,568.36/x
  3. Step 3: Cross multiply
    13,535.48x = 18,680.68 × 7,568.36
  4. Step 4: Simplify right side
    13,535.48x = 141,382,111.28
  5. Step 5: Solve for x
    x = 141,382,111.28/13,535.48
  6. Step 6: Final answer
    x = 10,445.30

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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.