Home / 15,822.16-21,818.76-12,284.08

Finding the Fourth Proportional to 15,822.16, 21,818.76 and 12,284.08

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Solution

The fourth proportional to 15,822.16, 21,818.76 and 12,284.08 is: 16,939.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,822.16 : 21,818.76 = 12,284.08 : x
  2. Step 2: Convert to fraction form
    15,822.16/21,818.76 = 12,284.08/x
  3. Step 3: Cross multiply
    15,822.16x = 21,818.76 × 12,284.08
  4. Step 4: Simplify right side
    15,822.16x = 268,023,393.34
  5. Step 5: Solve for x
    x = 268,023,393.34/15,822.16
  6. Step 6: Final answer
    x = 16,939.75

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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.