Home / 13,533.29-18,676.35-7,565.21

Finding the Fourth Proportional to 13,533.29, 18,676.35 and 7,565.21

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Solution

The fourth proportional to 13,533.29, 18,676.35 and 7,565.21 is: 10,440.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,533.29 : 18,676.35 = 7,565.21 : x
  2. Step 2: Convert to fraction form
    13,533.29/18,676.35 = 7,565.21/x
  3. Step 3: Cross multiply
    13,533.29x = 18,676.35 × 7,565.21
  4. Step 4: Simplify right side
    13,533.29x = 141,290,539.30
  5. Step 5: Solve for x
    x = 141,290,539.30/13,533.29
  6. Step 6: Final answer
    x = 10,440.22

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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.