Home / 15,897.30-21,938.18-8,823.70

Finding the Fourth Proportional to 15,897.30, 21,938.18 and 8,823.70

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Solution

The fourth proportional to 15,897.30, 21,938.18 and 8,823.70 is: 12,176.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,897.30 : 21,938.18 = 8,823.70 : x
  2. Step 2: Convert to fraction form
    15,897.30/21,938.18 = 8,823.70/x
  3. Step 3: Cross multiply
    15,897.30x = 21,938.18 × 8,823.70
  4. Step 4: Simplify right side
    15,897.30x = 193,575,918.87
  5. Step 5: Solve for x
    x = 193,575,918.87/15,897.30
  6. Step 6: Final answer
    x = 12,176.65

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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.