Home / 13,323.21-18,386.01-7,354.86

Finding the Fourth Proportional to 13,323.21, 18,386.01 and 7,354.86

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Solution

The fourth proportional to 13,323.21, 18,386.01 and 7,354.86 is: 10,149.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,323.21 : 18,386.01 = 7,354.86 : x
  2. Step 2: Convert to fraction form
    13,323.21/18,386.01 = 7,354.86/x
  3. Step 3: Cross multiply
    13,323.21x = 18,386.01 × 7,354.86
  4. Step 4: Simplify right side
    13,323.21x = 135,226,529.51
  5. Step 5: Solve for x
    x = 135,226,529.51/13,323.21
  6. Step 6: Final answer
    x = 10,149.70

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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.