Home / 8,590.13-12,888.26-5,299.39

Finding the Fourth Proportional to 8,590.13, 12,888.26 and 5,299.39

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Solution

The fourth proportional to 8,590.13, 12,888.26 and 5,299.39 is: 7,950.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,590.13 : 12,888.26 = 5,299.39 : x
  2. Step 2: Convert to fraction form
    8,590.13/12,888.26 = 5,299.39/x
  3. Step 3: Cross multiply
    8,590.13x = 12,888.26 × 5,299.39
  4. Step 4: Simplify right side
    8,590.13x = 68,299,916.16
  5. Step 5: Solve for x
    x = 68,299,916.16/8,590.13
  6. Step 6: Final answer
    x = 7,950.98

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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.