Home / 13,313.60-19,980.72-5,001.18

Finding the Fourth Proportional to 13,313.60, 19,980.72 and 5,001.18

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Solution

The fourth proportional to 13,313.60, 19,980.72 and 5,001.18 is: 7,505.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,313.60 : 19,980.72 = 5,001.18 : x
  2. Step 2: Convert to fraction form
    13,313.60/19,980.72 = 5,001.18/x
  3. Step 3: Cross multiply
    13,313.60x = 19,980.72 × 5,001.18
  4. Step 4: Simplify right side
    13,313.60x = 99,927,177.25
  5. Step 5: Solve for x
    x = 99,927,177.25/13,313.60
  6. Step 6: Final answer
    x = 7,505.65

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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.