Home / 12,237.90-16,888.47-6,649.02

Finding the Fourth Proportional to 12,237.90, 16,888.47 and 6,649.02

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Solution

The fourth proportional to 12,237.90, 16,888.47 and 6,649.02 is: 9,175.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,237.90 : 16,888.47 = 6,649.02 : x
  2. Step 2: Convert to fraction form
    12,237.90/16,888.47 = 6,649.02/x
  3. Step 3: Cross multiply
    12,237.90x = 16,888.47 × 6,649.02
  4. Step 4: Simplify right side
    12,237.90x = 112,291,774.80
  5. Step 5: Solve for x
    x = 112,291,774.80/12,237.90
  6. Step 6: Final answer
    x = 9,175.74

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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.