Home / 11,430.58-15,779.59-8,599.03

Finding the Fourth Proportional to 11,430.58, 15,779.59 and 8,599.03

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Solution

The fourth proportional to 11,430.58, 15,779.59 and 8,599.03 is: 11,870.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,430.58 : 15,779.59 = 8,599.03 : x
  2. Step 2: Convert to fraction form
    11,430.58/15,779.59 = 8,599.03/x
  3. Step 3: Cross multiply
    11,430.58x = 15,779.59 × 8,599.03
  4. Step 4: Simplify right side
    11,430.58x = 135,689,247.50
  5. Step 5: Solve for x
    x = 135,689,247.50/11,430.58
  6. Step 6: Final answer
    x = 11,870.72

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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.