Home / 13,533.40-18,676.50-7,565.32

Finding the Fourth Proportional to 13,533.40, 18,676.50 and 7,565.32

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Solution

The fourth proportional to 13,533.40, 18,676.50 and 7,565.32 is: 10,440.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,533.40 : 18,676.50 = 7,565.32 : x
  2. Step 2: Convert to fraction form
    13,533.40/18,676.50 = 7,565.32/x
  3. Step 3: Cross multiply
    13,533.40x = 18,676.50 × 7,565.32
  4. Step 4: Simplify right side
    13,533.40x = 141,293,610.18
  5. Step 5: Solve for x
    x = 141,293,610.18/13,533.40
  6. Step 6: Final answer
    x = 10,440.37

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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.