Home / 14,409.60-19,888.32-9,111.36

Finding the Fourth Proportional to 14,409.60, 19,888.32 and 9,111.36

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Solution

The fourth proportional to 14,409.60, 19,888.32 and 9,111.36 is: 12,575.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,409.60 : 19,888.32 = 9,111.36 : x
  2. Step 2: Convert to fraction form
    14,409.60/19,888.32 = 9,111.36/x
  3. Step 3: Cross multiply
    14,409.60x = 19,888.32 × 9,111.36
  4. Step 4: Simplify right side
    14,409.60x = 181,209,643.32
  5. Step 5: Solve for x
    x = 181,209,643.32/14,409.60
  6. Step 6: Final answer
    x = 12,575.62

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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.