Home / 11,176.55-15,430.40-7,402.93

Finding the Fourth Proportional to 11,176.55, 15,430.40 and 7,402.93

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Solution

The fourth proportional to 11,176.55, 15,430.40 and 7,402.93 is: 10,220.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,176.55 : 15,430.40 = 7,402.93 : x
  2. Step 2: Convert to fraction form
    11,176.55/15,430.40 = 7,402.93/x
  3. Step 3: Cross multiply
    11,176.55x = 15,430.40 × 7,402.93
  4. Step 4: Simplify right side
    11,176.55x = 114,230,123.24
  5. Step 5: Solve for x
    x = 114,230,123.24/11,176.55
  6. Step 6: Final answer
    x = 10,220.52

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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.