Home / 10,953.12-15,118.02-6,240.20

Finding the Fourth Proportional to 10,953.12, 15,118.02 and 6,240.20

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Solution

The fourth proportional to 10,953.12, 15,118.02 and 6,240.20 is: 8,613.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,953.12 : 15,118.02 = 6,240.20 : x
  2. Step 2: Convert to fraction form
    10,953.12/15,118.02 = 6,240.20/x
  3. Step 3: Cross multiply
    10,953.12x = 15,118.02 × 6,240.20
  4. Step 4: Simplify right side
    10,953.12x = 94,339,468.40
  5. Step 5: Solve for x
    x = 94,339,468.40/10,953.12
  6. Step 6: Final answer
    x = 8,613.02

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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.