Home / 13,780.04-19,016.64-7,492.40

Finding the Fourth Proportional to 13,780.04, 19,016.64 and 7,492.40

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Solution

The fourth proportional to 13,780.04, 19,016.64 and 7,492.40 is: 10,339.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,780.04 : 19,016.64 = 7,492.40 : x
  2. Step 2: Convert to fraction form
    13,780.04/19,016.64 = 7,492.40/x
  3. Step 3: Cross multiply
    13,780.04x = 19,016.64 × 7,492.40
  4. Step 4: Simplify right side
    13,780.04x = 142,480,273.54
  5. Step 5: Solve for x
    x = 142,480,273.54/13,780.04
  6. Step 6: Final answer
    x = 10,339.61

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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.