Home / 14,702.42-20,275.44-9,657.74

Finding the Fourth Proportional to 14,702.42, 20,275.44 and 9,657.74

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Solution

The fourth proportional to 14,702.42, 20,275.44 and 9,657.74 is: 13,318.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,702.42 : 20,275.44 = 9,657.74 : x
  2. Step 2: Convert to fraction form
    14,702.42/20,275.44 = 9,657.74/x
  3. Step 3: Cross multiply
    14,702.42x = 20,275.44 × 9,657.74
  4. Step 4: Simplify right side
    14,702.42x = 195,814,927.91
  5. Step 5: Solve for x
    x = 195,814,927.91/14,702.42
  6. Step 6: Final answer
    x = 13,318.55

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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.