Home / 15,005.80-22,557.30-12,867.40

Finding the Fourth Proportional to 15,005.80, 22,557.30 and 12,867.40

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Solution

The fourth proportional to 15,005.80, 22,557.30 and 12,867.40 is: 19,342.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,005.80 : 22,557.30 = 12,867.40 : x
  2. Step 2: Convert to fraction form
    15,005.80/22,557.30 = 12,867.40/x
  3. Step 3: Cross multiply
    15,005.80x = 22,557.30 × 12,867.40
  4. Step 4: Simplify right side
    15,005.80x = 290,253,802.02
  5. Step 5: Solve for x
    x = 290,253,802.02/15,005.80
  6. Step 6: Final answer
    x = 19,342.77

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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.