Home / 13,482.40-18,608.18-10,290.75

Finding the Fourth Proportional to 13,482.40, 18,608.18 and 10,290.75

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Solution

The fourth proportional to 13,482.40, 18,608.18 and 10,290.75 is: 14,203.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,482.40 : 18,608.18 = 10,290.75 : x
  2. Step 2: Convert to fraction form
    13,482.40/18,608.18 = 10,290.75/x
  3. Step 3: Cross multiply
    13,482.40x = 18,608.18 × 10,290.75
  4. Step 4: Simplify right side
    13,482.40x = 191,492,064.99
  5. Step 5: Solve for x
    x = 191,492,064.99/13,482.40
  6. Step 6: Final answer
    x = 14,203.11

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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.