Home / 11,210.89-15,470.43-6,430.58

Finding the Fourth Proportional to 11,210.89, 15,470.43 and 6,430.58

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Solution

The fourth proportional to 11,210.89, 15,470.43 and 6,430.58 is: 8,873.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,210.89 : 15,470.43 = 6,430.58 : x
  2. Step 2: Convert to fraction form
    11,210.89/15,470.43 = 6,430.58/x
  3. Step 3: Cross multiply
    11,210.89x = 15,470.43 × 6,430.58
  4. Step 4: Simplify right side
    11,210.89x = 99,483,837.75
  5. Step 5: Solve for x
    x = 99,483,837.75/11,210.89
  6. Step 6: Final answer
    x = 8,873.86

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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.