Home / 10,147.02-13,987.99-6,561.71

Finding the Fourth Proportional to 10,147.02, 13,987.99 and 6,561.71

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Solution

The fourth proportional to 10,147.02, 13,987.99 and 6,561.71 is: 9,045.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,147.02 : 13,987.99 = 6,561.71 : x
  2. Step 2: Convert to fraction form
    10,147.02/13,987.99 = 6,561.71/x
  3. Step 3: Cross multiply
    10,147.02x = 13,987.99 × 6,561.71
  4. Step 4: Simplify right side
    10,147.02x = 91,785,124.58
  5. Step 5: Solve for x
    x = 91,785,124.58/10,147.02
  6. Step 6: Final answer
    x = 9,045.52

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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.