Home / 14,409.76-19,888.56-9,101.20

Finding the Fourth Proportional to 14,409.76, 19,888.56 and 9,101.20

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Solution

The fourth proportional to 14,409.76, 19,888.56 and 9,101.20 is: 12,561.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,409.76 : 19,888.56 = 9,101.20 : x
  2. Step 2: Convert to fraction form
    14,409.76/19,888.56 = 9,101.20/x
  3. Step 3: Cross multiply
    14,409.76x = 19,888.56 × 9,101.20
  4. Step 4: Simplify right side
    14,409.76x = 181,009,762.27
  5. Step 5: Solve for x
    x = 181,009,762.27/14,409.76
  6. Step 6: Final answer
    x = 12,561.61

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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.