Home / 13,409.96-18,492.88-8,031.53

Finding the Fourth Proportional to 13,409.96, 18,492.88 and 8,031.53

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Solution

The fourth proportional to 13,409.96, 18,492.88 and 8,031.53 is: 11,075.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,409.96 : 18,492.88 = 8,031.53 : x
  2. Step 2: Convert to fraction form
    13,409.96/18,492.88 = 8,031.53/x
  3. Step 3: Cross multiply
    13,409.96x = 18,492.88 × 8,031.53
  4. Step 4: Simplify right side
    13,409.96x = 148,526,110.47
  5. Step 5: Solve for x
    x = 148,526,110.47/13,409.96
  6. Step 6: Final answer
    x = 11,075.81

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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.