Home / 12,888.08-17,799.54-10,378.46

Finding the Fourth Proportional to 12,888.08, 17,799.54 and 10,378.46

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Solution

The fourth proportional to 12,888.08, 17,799.54 and 10,378.46 is: 14,333.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,888.08 : 17,799.54 = 10,378.46 : x
  2. Step 2: Convert to fraction form
    12,888.08/17,799.54 = 10,378.46/x
  3. Step 3: Cross multiply
    12,888.08x = 17,799.54 × 10,378.46
  4. Step 4: Simplify right side
    12,888.08x = 184,731,813.91
  5. Step 5: Solve for x
    x = 184,731,813.91/12,888.08
  6. Step 6: Final answer
    x = 14,333.54

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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.