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Finding the Fourth Proportional to 10,479.46, 15,677.07 and 9,036.58

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Solution

The fourth proportional to 10,479.46, 15,677.07 and 9,036.58 is: 13,518.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,479.46 : 15,677.07 = 9,036.58 : x
  2. Step 2: Convert to fraction form
    10,479.46/15,677.07 = 9,036.58/x
  3. Step 3: Cross multiply
    10,479.46x = 15,677.07 × 9,036.58
  4. Step 4: Simplify right side
    10,479.46x = 141,667,097.22
  5. Step 5: Solve for x
    x = 141,667,097.22/10,479.46
  6. Step 6: Final answer
    x = 13,518.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.