Home / 10,089.60-15,139.80-4,543.80

Finding the Fourth Proportional to 10,089.60, 15,139.80 and 4,543.80

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Solution

The fourth proportional to 10,089.60, 15,139.80 and 4,543.80 is: 6,818.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,089.60 : 15,139.80 = 4,543.80 : x
  2. Step 2: Convert to fraction form
    10,089.60/15,139.80 = 4,543.80/x
  3. Step 3: Cross multiply
    10,089.60x = 15,139.80 × 4,543.80
  4. Step 4: Simplify right side
    10,089.60x = 68,792,223.24
  5. Step 5: Solve for x
    x = 68,792,223.24/10,089.60
  6. Step 6: Final answer
    x = 6,818.13

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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.