Home / 13,543.48-18,690.92-7,575.70

Finding the Fourth Proportional to 13,543.48, 18,690.92 and 7,575.70

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Solution

The fourth proportional to 13,543.48, 18,690.92 and 7,575.70 is: 10,454.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,543.48 : 18,690.92 = 7,575.70 : x
  2. Step 2: Convert to fraction form
    13,543.48/18,690.92 = 7,575.70/x
  3. Step 3: Cross multiply
    13,543.48x = 18,690.92 × 7,575.70
  4. Step 4: Simplify right side
    13,543.48x = 141,596,802.64
  5. Step 5: Solve for x
    x = 141,596,802.64/13,543.48
  6. Step 6: Final answer
    x = 10,454.98

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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.