Home / 10,061.44-15,089.60-8,428.16

Finding the Fourth Proportional to 10,061.44, 15,089.60 and 8,428.16

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Solution

The fourth proportional to 10,061.44, 15,089.60 and 8,428.16 is: 12,640.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,061.44 : 15,089.60 = 8,428.16 : x
  2. Step 2: Convert to fraction form
    10,061.44/15,089.60 = 8,428.16/x
  3. Step 3: Cross multiply
    10,061.44x = 15,089.60 × 8,428.16
  4. Step 4: Simplify right side
    10,061.44x = 127,177,563.14
  5. Step 5: Solve for x
    x = 127,177,563.14/10,061.44
  6. Step 6: Final answer
    x = 12,640.10

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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.