Home / 14,354.40-19,809.12-8,386.32

Finding the Fourth Proportional to 14,354.40, 19,809.12 and 8,386.32

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Solution

The fourth proportional to 14,354.40, 19,809.12 and 8,386.32 is: 11,573.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,354.40 : 19,809.12 = 8,386.32 : x
  2. Step 2: Convert to fraction form
    14,354.40/19,809.12 = 8,386.32/x
  3. Step 3: Cross multiply
    14,354.40x = 19,809.12 × 8,386.32
  4. Step 4: Simplify right side
    14,354.40x = 166,125,619.24
  5. Step 5: Solve for x
    x = 166,125,619.24/14,354.40
  6. Step 6: Final answer
    x = 11,573.15

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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.