Home / 11,430.18-15,775.61-6,652.89

Finding the Fourth Proportional to 11,430.18, 15,775.61 and 6,652.89

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Solution

The fourth proportional to 11,430.18, 15,775.61 and 6,652.89 is: 9,182.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,430.18 : 15,775.61 = 6,652.89 : x
  2. Step 2: Convert to fraction form
    11,430.18/15,775.61 = 6,652.89/x
  3. Step 3: Cross multiply
    11,430.18x = 15,775.61 × 6,652.89
  4. Step 4: Simplify right side
    11,430.18x = 104,953,364.75
  5. Step 5: Solve for x
    x = 104,953,364.75/11,430.18
  6. Step 6: Final answer
    x = 9,182.13

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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.