Home / 13,412.61-18,509.70-7,444.19

Finding the Fourth Proportional to 13,412.61, 18,509.70 and 7,444.19

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Solution

The fourth proportional to 13,412.61, 18,509.70 and 7,444.19 is: 10,273.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,412.61 : 18,509.70 = 7,444.19 : x
  2. Step 2: Convert to fraction form
    13,412.61/18,509.70 = 7,444.19/x
  3. Step 3: Cross multiply
    13,412.61x = 18,509.70 × 7,444.19
  4. Step 4: Simplify right side
    13,412.61x = 137,789,631.09
  5. Step 5: Solve for x
    x = 137,789,631.09/13,412.61
  6. Step 6: Final answer
    x = 10,273.14

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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.