Home / 13,543.93-18,690.61-7,575.70

Finding the Fourth Proportional to 13,543.93, 18,690.61 and 7,575.70

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Solution

The fourth proportional to 13,543.93, 18,690.61 and 7,575.70 is: 10,454.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,543.93 : 18,690.61 = 7,575.70 : x
  2. Step 2: Convert to fraction form
    13,543.93/18,690.61 = 7,575.70/x
  3. Step 3: Cross multiply
    13,543.93x = 18,690.61 × 7,575.70
  4. Step 4: Simplify right side
    13,543.93x = 141,594,454.18
  5. Step 5: Solve for x
    x = 141,594,454.18/13,543.93
  6. Step 6: Final answer
    x = 10,454.46

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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.