Home / 10,217.74-15,312.43-4,657.50

Finding the Fourth Proportional to 10,217.74, 15,312.43 and 4,657.50

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Solution

The fourth proportional to 10,217.74, 15,312.43 and 4,657.50 is: 6,979.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,217.74 : 15,312.43 = 4,657.50 : x
  2. Step 2: Convert to fraction form
    10,217.74/15,312.43 = 4,657.50/x
  3. Step 3: Cross multiply
    10,217.74x = 15,312.43 × 4,657.50
  4. Step 4: Simplify right side
    10,217.74x = 71,317,642.73
  5. Step 5: Solve for x
    x = 71,317,642.73/10,217.74
  6. Step 6: Final answer
    x = 6,979.79

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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.