Home / 10,515.08-15,779.64-4,359.08

Finding the Fourth Proportional to 10,515.08, 15,779.64 and 4,359.08

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Solution

The fourth proportional to 10,515.08, 15,779.64 and 4,359.08 is: 6,541.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,515.08 : 15,779.64 = 4,359.08 : x
  2. Step 2: Convert to fraction form
    10,515.08/15,779.64 = 4,359.08/x
  3. Step 3: Cross multiply
    10,515.08x = 15,779.64 × 4,359.08
  4. Step 4: Simplify right side
    10,515.08x = 68,784,713.13
  5. Step 5: Solve for x
    x = 68,784,713.13/10,515.08
  6. Step 6: Final answer
    x = 6,541.53

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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.