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Finding the Fourth Proportional to 7,130.00, 10,689.54 and 4,357.98

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Solution

The fourth proportional to 7,130.00, 10,689.54 and 4,357.98 is: 6,533.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130.00 : 10,689.54 = 4,357.98 : x
  2. Step 2: Convert to fraction form
    7,130.00/10,689.54 = 4,357.98/x
  3. Step 3: Cross multiply
    7,130.00x = 10,689.54 × 4,357.98
  4. Step 4: Simplify right side
    7,130.00x = 46,584,785.19
  5. Step 5: Solve for x
    x = 46,584,785.19/7,130.00
  6. Step 6: Final answer
    x = 6,533.63

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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.