Home / 15,986.86-22,047.54-10,019.20

Finding the Fourth Proportional to 15,986.86, 22,047.54 and 10,019.20

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Solution

The fourth proportional to 15,986.86, 22,047.54 and 10,019.20 is: 13,817.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,986.86 : 22,047.54 = 10,019.20 : x
  2. Step 2: Convert to fraction form
    15,986.86/22,047.54 = 10,019.20/x
  3. Step 3: Cross multiply
    15,986.86x = 22,047.54 × 10,019.20
  4. Step 4: Simplify right side
    15,986.86x = 220,898,712.77
  5. Step 5: Solve for x
    x = 220,898,712.77/15,986.86
  6. Step 6: Final answer
    x = 13,817.52

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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.