Home / 10,988.08-15,159.96-6,271.44

Finding the Fourth Proportional to 10,988.08, 15,159.96 and 6,271.44

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Solution

The fourth proportional to 10,988.08, 15,159.96 and 6,271.44 is: 8,652.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,988.08 : 15,159.96 = 6,271.44 : x
  2. Step 2: Convert to fraction form
    10,988.08/15,159.96 = 6,271.44/x
  3. Step 3: Cross multiply
    10,988.08x = 15,159.96 × 6,271.44
  4. Step 4: Simplify right side
    10,988.08x = 95,074,779.54
  5. Step 5: Solve for x
    x = 95,074,779.54/10,988.08
  6. Step 6: Final answer
    x = 8,652.54

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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.