Home / 10,123.80-15,162.21-9,773.40

Finding the Fourth Proportional to 10,123.80, 15,162.21 and 9,773.40

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Solution

The fourth proportional to 10,123.80, 15,162.21 and 9,773.40 is: 14,637.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,123.80 : 15,162.21 = 9,773.40 : x
  2. Step 2: Convert to fraction form
    10,123.80/15,162.21 = 9,773.40/x
  3. Step 3: Cross multiply
    10,123.80x = 15,162.21 × 9,773.40
  4. Step 4: Simplify right side
    10,123.80x = 148,186,343.21
  5. Step 5: Solve for x
    x = 148,186,343.21/10,123.80
  6. Step 6: Final answer
    x = 14,637.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.