Home / 10,941.24-15,072.57-8,702.40

Finding the Fourth Proportional to 10,941.24, 15,072.57 and 8,702.40

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Solution

The fourth proportional to 10,941.24, 15,072.57 and 8,702.40 is: 11,988.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,941.24 : 15,072.57 = 8,702.40 : x
  2. Step 2: Convert to fraction form
    10,941.24/15,072.57 = 8,702.40/x
  3. Step 3: Cross multiply
    10,941.24x = 15,072.57 × 8,702.40
  4. Step 4: Simplify right side
    10,941.24x = 131,167,533.17
  5. Step 5: Solve for x
    x = 131,167,533.17/10,941.24
  6. Step 6: Final answer
    x = 11,988.36

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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.