Home / 13,430.74-20,155.29-4,665.58

Finding the Fourth Proportional to 13,430.74, 20,155.29 and 4,665.58

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Solution

The fourth proportional to 13,430.74, 20,155.29 and 4,665.58 is: 7,001.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,430.74 : 20,155.29 = 4,665.58 : x
  2. Step 2: Convert to fraction form
    13,430.74/20,155.29 = 4,665.58/x
  3. Step 3: Cross multiply
    13,430.74x = 20,155.29 × 4,665.58
  4. Step 4: Simplify right side
    13,430.74x = 94,036,117.92
  5. Step 5: Solve for x
    x = 94,036,117.92/13,430.74
  6. Step 6: Final answer
    x = 7,001.56

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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.