Home / 13,142.23-19,702.71-8,971.74

Finding the Fourth Proportional to 13,142.23, 19,702.71 and 8,971.74

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Solution

The fourth proportional to 13,142.23, 19,702.71 and 8,971.74 is: 13,450.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,142.23 : 19,702.71 = 8,971.74 : x
  2. Step 2: Convert to fraction form
    13,142.23/19,702.71 = 8,971.74/x
  3. Step 3: Cross multiply
    13,142.23x = 19,702.71 × 8,971.74
  4. Step 4: Simplify right side
    13,142.23x = 176,767,591.42
  5. Step 5: Solve for x
    x = 176,767,591.42/13,142.23
  6. Step 6: Final answer
    x = 13,450.35

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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.