Home / 13,534.71-18,676.65-7,565.55

Finding the Fourth Proportional to 13,534.71, 18,676.65 and 7,565.55

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Solution

The fourth proportional to 13,534.71, 18,676.65 and 7,565.55 is: 10,439.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,534.71 : 18,676.65 = 7,565.55 : x
  2. Step 2: Convert to fraction form
    13,534.71/18,676.65 = 7,565.55/x
  3. Step 3: Cross multiply
    13,534.71x = 18,676.65 × 7,565.55
  4. Step 4: Simplify right side
    13,534.71x = 141,299,129.41
  5. Step 5: Solve for x
    x = 141,299,129.41/13,534.71
  6. Step 6: Final answer
    x = 10,439.76

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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.