Home / 7,321.47-10,099.51-4,631.86

Finding the Fourth Proportional to 7,321.47, 10,099.51 and 4,631.86

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Solution

The fourth proportional to 7,321.47, 10,099.51 and 4,631.86 is: 6,389.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321.47 : 10,099.51 = 4,631.86 : x
  2. Step 2: Convert to fraction form
    7,321.47/10,099.51 = 4,631.86/x
  3. Step 3: Cross multiply
    7,321.47x = 10,099.51 × 4,631.86
  4. Step 4: Simplify right side
    7,321.47x = 46,779,516.39
  5. Step 5: Solve for x
    x = 46,779,516.39/7,321.47
  6. Step 6: Final answer
    x = 6,389.36

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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.