Home / 10,518.93-15,780.26-3,591.81

Finding the Fourth Proportional to 10,518.93, 15,780.26 and 3,591.81

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Solution

The fourth proportional to 10,518.93, 15,780.26 and 3,591.81 is: 5,388.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,518.93 : 15,780.26 = 3,591.81 : x
  2. Step 2: Convert to fraction form
    10,518.93/15,780.26 = 3,591.81/x
  3. Step 3: Cross multiply
    10,518.93x = 15,780.26 × 3,591.81
  4. Step 4: Simplify right side
    10,518.93x = 56,679,677.71
  5. Step 5: Solve for x
    x = 56,679,677.71/10,518.93
  6. Step 6: Final answer
    x = 5,388.35

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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.