Home / 8,976.71-13,458.98-3,130.13

Finding the Fourth Proportional to 8,976.71, 13,458.98 and 3,130.13

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Solution

The fourth proportional to 8,976.71, 13,458.98 and 3,130.13 is: 4,693.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,976.71 : 13,458.98 = 3,130.13 : x
  2. Step 2: Convert to fraction form
    8,976.71/13,458.98 = 3,130.13/x
  3. Step 3: Cross multiply
    8,976.71x = 13,458.98 × 3,130.13
  4. Step 4: Simplify right side
    8,976.71x = 42,128,289.77
  5. Step 5: Solve for x
    x = 42,128,289.77/8,976.71
  6. Step 6: Final answer
    x = 4,693.07

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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.