Home / 7,900.02-10,898.70-5,543.70

Finding the Fourth Proportional to 7,900.02, 10,898.70 and 5,543.70

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Solution

The fourth proportional to 7,900.02, 10,898.70 and 5,543.70 is: 7,647.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,900.02 : 10,898.70 = 5,543.70 : x
  2. Step 2: Convert to fraction form
    7,900.02/10,898.70 = 5,543.70/x
  3. Step 3: Cross multiply
    7,900.02x = 10,898.70 × 5,543.70
  4. Step 4: Simplify right side
    7,900.02x = 60,419,123.19
  5. Step 5: Solve for x
    x = 60,419,123.19/7,900.02
  6. Step 6: Final answer
    x = 7,647.97

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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.