Home / 10,985.32-15,159.60-6,269.68

Finding the Fourth Proportional to 10,985.32, 15,159.60 and 6,269.68

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Solution

The fourth proportional to 10,985.32, 15,159.60 and 6,269.68 is: 8,652.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,985.32 : 15,159.60 = 6,269.68 : x
  2. Step 2: Convert to fraction form
    10,985.32/15,159.60 = 6,269.68/x
  3. Step 3: Cross multiply
    10,985.32x = 15,159.60 × 6,269.68
  4. Step 4: Simplify right side
    10,985.32x = 95,045,840.93
  5. Step 5: Solve for x
    x = 95,045,840.93/10,985.32
  6. Step 6: Final answer
    x = 8,652.08

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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.