Home / 15,613.71-21,548.88-10,240.67

Finding the Fourth Proportional to 15,613.71, 21,548.88 and 10,240.67

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Solution

The fourth proportional to 15,613.71, 21,548.88 and 10,240.67 is: 14,133.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,613.71 : 21,548.88 = 10,240.67 : x
  2. Step 2: Convert to fraction form
    15,613.71/21,548.88 = 10,240.67/x
  3. Step 3: Cross multiply
    15,613.71x = 21,548.88 × 10,240.67
  4. Step 4: Simplify right side
    15,613.71x = 220,674,861.21
  5. Step 5: Solve for x
    x = 220,674,861.21/15,613.71
  6. Step 6: Final answer
    x = 14,133.40

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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.