Home / 10,519.56-15,779.34-9,878.04

Finding the Fourth Proportional to 10,519.56, 15,779.34 and 9,878.04

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Solution

The fourth proportional to 10,519.56, 15,779.34 and 9,878.04 is: 14,817.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,519.56 : 15,779.34 = 9,878.04 : x
  2. Step 2: Convert to fraction form
    10,519.56/15,779.34 = 9,878.04/x
  3. Step 3: Cross multiply
    10,519.56x = 15,779.34 × 9,878.04
  4. Step 4: Simplify right side
    10,519.56x = 155,868,951.69
  5. Step 5: Solve for x
    x = 155,868,951.69/10,519.56
  6. Step 6: Final answer
    x = 14,817.06

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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.