Home / 12,895.60-19,343.40-8,748.40

Finding the Fourth Proportional to 12,895.60, 19,343.40 and 8,748.40

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Solution

The fourth proportional to 12,895.60, 19,343.40 and 8,748.40 is: 13,122.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,895.60 : 19,343.40 = 8,748.40 : x
  2. Step 2: Convert to fraction form
    12,895.60/19,343.40 = 8,748.40/x
  3. Step 3: Cross multiply
    12,895.60x = 19,343.40 × 8,748.40
  4. Step 4: Simplify right side
    12,895.60x = 169,223,800.56
  5. Step 5: Solve for x
    x = 169,223,800.56/12,895.60
  6. Step 6: Final answer
    x = 13,122.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.