Home / 14,276.56-19,702.56-7,989.40

Finding the Fourth Proportional to 14,276.56, 19,702.56 and 7,989.40

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Solution

The fourth proportional to 14,276.56, 19,702.56 and 7,989.40 is: 11,025.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,276.56 : 19,702.56 = 7,989.40 : x
  2. Step 2: Convert to fraction form
    14,276.56/19,702.56 = 7,989.40/x
  3. Step 3: Cross multiply
    14,276.56x = 19,702.56 × 7,989.40
  4. Step 4: Simplify right side
    14,276.56x = 157,411,632.86
  5. Step 5: Solve for x
    x = 157,411,632.86/14,276.56
  6. Step 6: Final answer
    x = 11,025.88

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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.