Home / 14,492.60-19,991.82-8,521.40

Finding the Fourth Proportional to 14,492.60, 19,991.82 and 8,521.40

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Solution

The fourth proportional to 14,492.60, 19,991.82 and 8,521.40 is: 11,754.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,492.60 : 19,991.82 = 8,521.40 : x
  2. Step 2: Convert to fraction form
    14,492.60/19,991.82 = 8,521.40/x
  3. Step 3: Cross multiply
    14,492.60x = 19,991.82 × 8,521.40
  4. Step 4: Simplify right side
    14,492.60x = 170,358,294.95
  5. Step 5: Solve for x
    x = 170,358,294.95/14,492.60
  6. Step 6: Final answer
    x = 11,754.85

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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.