Home / 13,395.24-18,484.53-7,730.23

Finding the Fourth Proportional to 13,395.24, 18,484.53 and 7,730.23

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Solution

The fourth proportional to 13,395.24, 18,484.53 and 7,730.23 is: 10,667.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,395.24 : 18,484.53 = 7,730.23 : x
  2. Step 2: Convert to fraction form
    13,395.24/18,484.53 = 7,730.23/x
  3. Step 3: Cross multiply
    13,395.24x = 18,484.53 × 7,730.23
  4. Step 4: Simplify right side
    13,395.24x = 142,889,575.92
  5. Step 5: Solve for x
    x = 142,889,575.92/13,395.24
  6. Step 6: Final answer
    x = 10,667.19

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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.