Home / 15,861.40-23,778.72-10,005.10

Finding the Fourth Proportional to 15,861.40, 23,778.72 and 10,005.10

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Solution

The fourth proportional to 15,861.40, 23,778.72 and 10,005.10 is: 14,999.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,861.40 : 23,778.72 = 10,005.10 : x
  2. Step 2: Convert to fraction form
    15,861.40/23,778.72 = 10,005.10/x
  3. Step 3: Cross multiply
    15,861.40x = 23,778.72 × 10,005.10
  4. Step 4: Simplify right side
    15,861.40x = 237,908,471.47
  5. Step 5: Solve for x
    x = 237,908,471.47/15,861.40
  6. Step 6: Final answer
    x = 14,999.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.