Home / 14,670.85-20,250.36-9,897.70

Finding the Fourth Proportional to 14,670.85, 20,250.36 and 9,897.70

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Solution

The fourth proportional to 14,670.85, 20,250.36 and 9,897.70 is: 13,661.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,670.85 : 20,250.36 = 9,897.70 : x
  2. Step 2: Convert to fraction form
    14,670.85/20,250.36 = 9,897.70/x
  3. Step 3: Cross multiply
    14,670.85x = 20,250.36 × 9,897.70
  4. Step 4: Simplify right side
    14,670.85x = 200,431,988.17
  5. Step 5: Solve for x
    x = 200,431,988.17/14,670.85
  6. Step 6: Final answer
    x = 13,661.92

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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.