Home / 12,543.27-17,315.64-7,237.19

Finding the Fourth Proportional to 12,543.27, 17,315.64 and 7,237.19

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Solution

The fourth proportional to 12,543.27, 17,315.64 and 7,237.19 is: 9,990.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,543.27 : 17,315.64 = 7,237.19 : x
  2. Step 2: Convert to fraction form
    12,543.27/17,315.64 = 7,237.19/x
  3. Step 3: Cross multiply
    12,543.27x = 17,315.64 × 7,237.19
  4. Step 4: Simplify right side
    12,543.27x = 125,316,490.07
  5. Step 5: Solve for x
    x = 125,316,490.07/12,543.27
  6. Step 6: Final answer
    x = 9,990.74

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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.