Home / 15,189.84-20,967.75-13,056.93

Finding the Fourth Proportional to 15,189.84, 20,967.75 and 13,056.93

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Solution

The fourth proportional to 15,189.84, 20,967.75 and 13,056.93 is: 18,023.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,189.84 : 20,967.75 = 13,056.93 : x
  2. Step 2: Convert to fraction form
    15,189.84/20,967.75 = 13,056.93/x
  3. Step 3: Cross multiply
    15,189.84x = 20,967.75 × 13,056.93
  4. Step 4: Simplify right side
    15,189.84x = 273,774,444.01
  5. Step 5: Solve for x
    x = 273,774,444.01/15,189.84
  6. Step 6: Final answer
    x = 18,023.52

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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.