Home / 10,418.64-14,378.09-5,702.91

Finding the Fourth Proportional to 10,418.64, 14,378.09 and 5,702.91

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Solution

The fourth proportional to 10,418.64, 14,378.09 and 5,702.91 is: 7,870.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,418.64 : 14,378.09 = 5,702.91 : x
  2. Step 2: Convert to fraction form
    10,418.64/14,378.09 = 5,702.91/x
  3. Step 3: Cross multiply
    10,418.64x = 14,378.09 × 5,702.91
  4. Step 4: Simplify right side
    10,418.64x = 81,996,953.24
  5. Step 5: Solve for x
    x = 81,996,953.24/10,418.64
  6. Step 6: Final answer
    x = 7,870.22

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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.