Home / 15,423.42-21,283.08-8,710.68

Finding the Fourth Proportional to 15,423.42, 21,283.08 and 8,710.68

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Solution

The fourth proportional to 15,423.42, 21,283.08 and 8,710.68 is: 12,020.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,423.42 : 21,283.08 = 8,710.68 : x
  2. Step 2: Convert to fraction form
    15,423.42/21,283.08 = 8,710.68/x
  3. Step 3: Cross multiply
    15,423.42x = 21,283.08 × 8,710.68
  4. Step 4: Simplify right side
    15,423.42x = 185,390,099.29
  5. Step 5: Solve for x
    x = 185,390,099.29/15,423.42
  6. Step 6: Final answer
    x = 12,020.04

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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.