Home / 11,045.80-16,557.90-9,879.40

Finding the Fourth Proportional to 11,045.80, 16,557.90 and 9,879.40

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Solution

The fourth proportional to 11,045.80, 16,557.90 and 9,879.40 is: 14,809.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,045.80 : 16,557.90 = 9,879.40 : x
  2. Step 2: Convert to fraction form
    11,045.80/16,557.90 = 9,879.40/x
  3. Step 3: Cross multiply
    11,045.80x = 16,557.90 × 9,879.40
  4. Step 4: Simplify right side
    11,045.80x = 163,582,117.26
  5. Step 5: Solve for x
    x = 163,582,117.26/11,045.80
  6. Step 6: Final answer
    x = 14,809.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.