Home / 12,635.72-17,437.47-6,970.70

Finding the Fourth Proportional to 12,635.72, 17,437.47 and 6,970.70

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Solution

The fourth proportional to 12,635.72, 17,437.47 and 6,970.70 is: 9,619.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,635.72 : 17,437.47 = 6,970.70 : x
  2. Step 2: Convert to fraction form
    12,635.72/17,437.47 = 6,970.70/x
  3. Step 3: Cross multiply
    12,635.72x = 17,437.47 × 6,970.70
  4. Step 4: Simplify right side
    12,635.72x = 121,551,389.58
  5. Step 5: Solve for x
    x = 121,551,389.58/12,635.72
  6. Step 6: Final answer
    x = 9,619.67

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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.