Home / 13,484.16-18,606.12-7,515.96

Finding the Fourth Proportional to 13,484.16, 18,606.12 and 7,515.96

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Solution

The fourth proportional to 13,484.16, 18,606.12 and 7,515.96 is: 10,370.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,484.16 : 18,606.12 = 7,515.96 : x
  2. Step 2: Convert to fraction form
    13,484.16/18,606.12 = 7,515.96/x
  3. Step 3: Cross multiply
    13,484.16x = 18,606.12 × 7,515.96
  4. Step 4: Simplify right side
    13,484.16x = 139,842,853.68
  5. Step 5: Solve for x
    x = 139,842,853.68/13,484.16
  6. Step 6: Final answer
    x = 10,370.90

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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.