Home / 13,267.91-19,901.93-12,602.78

Finding the Fourth Proportional to 13,267.91, 19,901.93 and 12,602.78

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Solution

The fourth proportional to 13,267.91, 19,901.93 and 12,602.78 is: 18,904.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,267.91 : 19,901.93 = 12,602.78 : x
  2. Step 2: Convert to fraction form
    13,267.91/19,901.93 = 12,602.78/x
  3. Step 3: Cross multiply
    13,267.91x = 19,901.93 × 12,602.78
  4. Step 4: Simplify right side
    13,267.91x = 250,819,482.84
  5. Step 5: Solve for x
    x = 250,819,482.84/13,267.91
  6. Step 6: Final answer
    x = 18,904.22

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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.