Home / 7,030.20-9,711.60-5,623.20

Finding the Fourth Proportional to 7,030.20, 9,711.60 and 5,623.20

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Solution

The fourth proportional to 7,030.20, 9,711.60 and 5,623.20 is: 7,767.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,030.20 : 9,711.60 = 5,623.20 : x
  2. Step 2: Convert to fraction form
    7,030.20/9,711.60 = 5,623.20/x
  3. Step 3: Cross multiply
    7,030.20x = 9,711.60 × 5,623.20
  4. Step 4: Simplify right side
    7,030.20x = 54,610,269.12
  5. Step 5: Solve for x
    x = 54,610,269.12/7,030.20
  6. Step 6: Final answer
    x = 7,767.95

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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.