Home / 10,220.48-15,256.16-8,768.96

Finding the Fourth Proportional to 10,220.48, 15,256.16 and 8,768.96

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Solution

The fourth proportional to 10,220.48, 15,256.16 and 8,768.96 is: 13,089.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,220.48 : 15,256.16 = 8,768.96 : x
  2. Step 2: Convert to fraction form
    10,220.48/15,256.16 = 8,768.96/x
  3. Step 3: Cross multiply
    10,220.48x = 15,256.16 × 8,768.96
  4. Step 4: Simplify right side
    10,220.48x = 133,780,656.79
  5. Step 5: Solve for x
    x = 133,780,656.79/10,220.48
  6. Step 6: Final answer
    x = 13,089.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.