Home / 15,837.77-21,854.98-8,764.31

Finding the Fourth Proportional to 15,837.77, 21,854.98 and 8,764.31

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Solution

The fourth proportional to 15,837.77, 21,854.98 and 8,764.31 is: 12,094.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,837.77 : 21,854.98 = 8,764.31 : x
  2. Step 2: Convert to fraction form
    15,837.77/21,854.98 = 8,764.31/x
  3. Step 3: Cross multiply
    15,837.77x = 21,854.98 × 8,764.31
  4. Step 4: Simplify right side
    15,837.77x = 191,543,885.36
  5. Step 5: Solve for x
    x = 191,543,885.36/15,837.77
  6. Step 6: Final answer
    x = 12,094.12

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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.