Home / 14,897.79-20,561.49-8,613.81

Finding the Fourth Proportional to 14,897.79, 20,561.49 and 8,613.81

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Solution

The fourth proportional to 14,897.79, 20,561.49 and 8,613.81 is: 11,888.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,897.79 : 20,561.49 = 8,613.81 : x
  2. Step 2: Convert to fraction form
    14,897.79/20,561.49 = 8,613.81/x
  3. Step 3: Cross multiply
    14,897.79x = 20,561.49 × 8,613.81
  4. Step 4: Simplify right side
    14,897.79x = 177,112,768.18
  5. Step 5: Solve for x
    x = 177,112,768.18/14,897.79
  6. Step 6: Final answer
    x = 11,888.53

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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.