Home / 10,489.50-15,740.43-4,646.16

Finding the Fourth Proportional to 10,489.50, 15,740.43 and 4,646.16

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Solution

The fourth proportional to 10,489.50, 15,740.43 and 4,646.16 is: 6,971.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,489.50 : 15,740.43 = 4,646.16 : x
  2. Step 2: Convert to fraction form
    10,489.50/15,740.43 = 4,646.16/x
  3. Step 3: Cross multiply
    10,489.50x = 15,740.43 × 4,646.16
  4. Step 4: Simplify right side
    10,489.50x = 73,132,538.83
  5. Step 5: Solve for x
    x = 73,132,538.83/10,489.50
  6. Step 6: Final answer
    x = 6,971.98

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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.