Home / 14,715.32-20,306.70-8,342.50

Finding the Fourth Proportional to 14,715.32, 20,306.70 and 8,342.50

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Solution

The fourth proportional to 14,715.32, 20,306.70 and 8,342.50 is: 11,512.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,715.32 : 20,306.70 = 8,342.50 : x
  2. Step 2: Convert to fraction form
    14,715.32/20,306.70 = 8,342.50/x
  3. Step 3: Cross multiply
    14,715.32x = 20,306.70 × 8,342.50
  4. Step 4: Simplify right side
    14,715.32x = 169,408,644.75
  5. Step 5: Solve for x
    x = 169,408,644.75/14,715.32
  6. Step 6: Final answer
    x = 11,512.40

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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.