Home / 16,579.76-22,878.36-9,407.39

Finding the Fourth Proportional to 16,579.76, 22,878.36 and 9,407.39

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Solution

The fourth proportional to 16,579.76, 22,878.36 and 9,407.39 is: 12,981.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,579.76 : 22,878.36 = 9,407.39 : x
  2. Step 2: Convert to fraction form
    16,579.76/22,878.36 = 9,407.39/x
  3. Step 3: Cross multiply
    16,579.76x = 22,878.36 × 9,407.39
  4. Step 4: Simplify right side
    16,579.76x = 215,225,655.08
  5. Step 5: Solve for x
    x = 215,225,655.08/16,579.76
  6. Step 6: Final answer
    x = 12,981.23

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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.