Home / 11,897.72-16,417.28-6,862.12

Finding the Fourth Proportional to 11,897.72, 16,417.28 and 6,862.12

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Solution

The fourth proportional to 11,897.72, 16,417.28 and 6,862.12 is: 9,468.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,897.72 : 16,417.28 = 6,862.12 : x
  2. Step 2: Convert to fraction form
    11,897.72/16,417.28 = 6,862.12/x
  3. Step 3: Cross multiply
    11,897.72x = 16,417.28 × 6,862.12
  4. Step 4: Simplify right side
    11,897.72x = 112,657,345.43
  5. Step 5: Solve for x
    x = 112,657,345.43/11,897.72
  6. Step 6: Final answer
    x = 9,468.82

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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.