Home / 9,670.46-13,345.22-5,478.70

Finding the Fourth Proportional to 9,670.46, 13,345.22 and 5,478.70

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Solution

The fourth proportional to 9,670.46, 13,345.22 and 5,478.70 is: 7,560.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,670.46 : 13,345.22 = 5,478.70 : x
  2. Step 2: Convert to fraction form
    9,670.46/13,345.22 = 5,478.70/x
  3. Step 3: Cross multiply
    9,670.46x = 13,345.22 × 5,478.70
  4. Step 4: Simplify right side
    9,670.46x = 73,114,456.81
  5. Step 5: Solve for x
    x = 73,114,456.81/9,670.46
  6. Step 6: Final answer
    x = 7,560.60

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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.