Home / 10,418.09-14,377.32-5,702.40

Finding the Fourth Proportional to 10,418.09, 14,377.32 and 5,702.40

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Solution

The fourth proportional to 10,418.09, 14,377.32 and 5,702.40 is: 7,869.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,418.09 : 14,377.32 = 5,702.40 : x
  2. Step 2: Convert to fraction form
    10,418.09/14,377.32 = 5,702.40/x
  3. Step 3: Cross multiply
    10,418.09x = 14,377.32 × 5,702.40
  4. Step 4: Simplify right side
    10,418.09x = 81,985,229.57
  5. Step 5: Solve for x
    x = 81,985,229.57/10,418.09
  6. Step 6: Final answer
    x = 7,869.51

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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.