Home / 18,615.50-25,690.68-10,549.08

Finding the Fourth Proportional to 18,615.50, 25,690.68 and 10,549.08

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Solution

The fourth proportional to 18,615.50, 25,690.68 and 10,549.08 is: 14,558.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,615.50 : 25,690.68 = 10,549.08 : x
  2. Step 2: Convert to fraction form
    18,615.50/25,690.68 = 10,549.08/x
  3. Step 3: Cross multiply
    18,615.50x = 25,690.68 × 10,549.08
  4. Step 4: Simplify right side
    18,615.50x = 271,013,038.57
  5. Step 5: Solve for x
    x = 271,013,038.57/18,615.50
  6. Step 6: Final answer
    x = 14,558.46

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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.