Home / 14,261.60-19,680.72-8,674.40

Finding the Fourth Proportional to 14,261.60, 19,680.72 and 8,674.40

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Solution

The fourth proportional to 14,261.60, 19,680.72 and 8,674.40 is: 11,970.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,261.60 : 19,680.72 = 8,674.40 : x
  2. Step 2: Convert to fraction form
    14,261.60/19,680.72 = 8,674.40/x
  3. Step 3: Cross multiply
    14,261.60x = 19,680.72 × 8,674.40
  4. Step 4: Simplify right side
    14,261.60x = 170,718,437.57
  5. Step 5: Solve for x
    x = 170,718,437.57/14,261.60
  6. Step 6: Final answer
    x = 11,970.50

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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.