Home / 11,585.58-15,988.08-6,280.37

Finding the Fourth Proportional to 11,585.58, 15,988.08 and 6,280.37

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Solution

The fourth proportional to 11,585.58, 15,988.08 and 6,280.37 is: 8,666.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,585.58 : 15,988.08 = 6,280.37 : x
  2. Step 2: Convert to fraction form
    11,585.58/15,988.08 = 6,280.37/x
  3. Step 3: Cross multiply
    11,585.58x = 15,988.08 × 6,280.37
  4. Step 4: Simplify right side
    11,585.58x = 100,411,057.99
  5. Step 5: Solve for x
    x = 100,411,057.99/11,585.58
  6. Step 6: Final answer
    x = 8,666.90

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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.