Home / 12,290.52-16,963.88-6,988.24

Finding the Fourth Proportional to 12,290.52, 16,963.88 and 6,988.24

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Solution

The fourth proportional to 12,290.52, 16,963.88 and 6,988.24 is: 9,645.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,290.52 : 16,963.88 = 6,988.24 : x
  2. Step 2: Convert to fraction form
    12,290.52/16,963.88 = 6,988.24/x
  3. Step 3: Cross multiply
    12,290.52x = 16,963.88 × 6,988.24
  4. Step 4: Simplify right side
    12,290.52x = 118,547,664.77
  5. Step 5: Solve for x
    x = 118,547,664.77/12,290.52
  6. Step 6: Final answer
    x = 9,645.46

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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.