Home / 13,551.08-18,699.62-7,581.74

Finding the Fourth Proportional to 13,551.08, 18,699.62 and 7,581.74

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Solution

The fourth proportional to 13,551.08, 18,699.62 and 7,581.74 is: 10,462.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,551.08 : 18,699.62 = 7,581.74 : x
  2. Step 2: Convert to fraction form
    13,551.08/18,699.62 = 7,581.74/x
  3. Step 3: Cross multiply
    13,551.08x = 18,699.62 × 7,581.74
  4. Step 4: Simplify right side
    13,551.08x = 141,775,525.53
  5. Step 5: Solve for x
    x = 141,775,525.53/13,551.08
  6. Step 6: Final answer
    x = 10,462.31

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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.