Home / 15,565.49-21,482.21-8,852.12

Finding the Fourth Proportional to 15,565.49, 21,482.21 and 8,852.12

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Solution

The fourth proportional to 15,565.49, 21,482.21 and 8,852.12 is: 12,216.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,565.49 : 21,482.21 = 8,852.12 : x
  2. Step 2: Convert to fraction form
    15,565.49/21,482.21 = 8,852.12/x
  3. Step 3: Cross multiply
    15,565.49x = 21,482.21 × 8,852.12
  4. Step 4: Simplify right side
    15,565.49x = 190,163,100.79
  5. Step 5: Solve for x
    x = 190,163,100.79/15,565.49
  6. Step 6: Final answer
    x = 12,216.97

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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.