Home / 12,018.58-16,565.80-8,038.24

Finding the Fourth Proportional to 12,018.58, 16,565.80 and 8,038.24

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Solution

The fourth proportional to 12,018.58, 16,565.80 and 8,038.24 is: 11,079.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,018.58 : 16,565.80 = 8,038.24 : x
  2. Step 2: Convert to fraction form
    12,018.58/16,565.80 = 8,038.24/x
  3. Step 3: Cross multiply
    12,018.58x = 16,565.80 × 8,038.24
  4. Step 4: Simplify right side
    12,018.58x = 133,159,876.19
  5. Step 5: Solve for x
    x = 133,159,876.19/12,018.58
  6. Step 6: Final answer
    x = 11,079.50

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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.