Home / 13,335.15-19,980.80-4,565.28

Finding the Fourth Proportional to 13,335.15, 19,980.80 and 4,565.28

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Solution

The fourth proportional to 13,335.15, 19,980.80 and 4,565.28 is: 6,840.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,335.15 : 19,980.80 = 4,565.28 : x
  2. Step 2: Convert to fraction form
    13,335.15/19,980.80 = 4,565.28/x
  3. Step 3: Cross multiply
    13,335.15x = 19,980.80 × 4,565.28
  4. Step 4: Simplify right side
    13,335.15x = 91,217,946.62
  5. Step 5: Solve for x
    x = 91,217,946.62/13,335.15
  6. Step 6: Final answer
    x = 6,840.41

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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.