Home / 13,415.76-20,116.86-4,648.32

Finding the Fourth Proportional to 13,415.76, 20,116.86 and 4,648.32

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Solution

The fourth proportional to 13,415.76, 20,116.86 and 4,648.32 is: 6,970.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,415.76 : 20,116.86 = 4,648.32 : x
  2. Step 2: Convert to fraction form
    13,415.76/20,116.86 = 4,648.32/x
  3. Step 3: Cross multiply
    13,415.76x = 20,116.86 × 4,648.32
  4. Step 4: Simplify right side
    13,415.76x = 93,509,602.68
  5. Step 5: Solve for x
    x = 93,509,602.68/13,415.76
  6. Step 6: Final answer
    x = 6,970.13

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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.