Home / 26,590.45-39,885.68-7,870.68

Finding the Fourth Proportional to 26,590.45, 39,885.68 and 7,870.68

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Solution

The fourth proportional to 26,590.45, 39,885.68 and 7,870.68 is: 11,806.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,590.45 : 39,885.68 = 7,870.68 : x
  2. Step 2: Convert to fraction form
    26,590.45/39,885.68 = 7,870.68/x
  3. Step 3: Cross multiply
    26,590.45x = 39,885.68 × 7,870.68
  4. Step 4: Simplify right side
    26,590.45x = 313,927,423.86
  5. Step 5: Solve for x
    x = 313,927,423.86/26,590.45
  6. Step 6: Final answer
    x = 11,806.02

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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.