Home / 13,670.08-18,864.84-7,701.88

Finding the Fourth Proportional to 13,670.08, 18,864.84 and 7,701.88

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Solution

The fourth proportional to 13,670.08, 18,864.84 and 7,701.88 is: 10,628.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,670.08 : 18,864.84 = 7,701.88 : x
  2. Step 2: Convert to fraction form
    13,670.08/18,864.84 = 7,701.88/x
  3. Step 3: Cross multiply
    13,670.08x = 18,864.84 × 7,701.88
  4. Step 4: Simplify right side
    13,670.08x = 145,294,733.90
  5. Step 5: Solve for x
    x = 145,294,733.90/13,670.08
  6. Step 6: Final answer
    x = 10,628.67

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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.