Home / 13,209.76-19,802.88-5,007.52

Finding the Fourth Proportional to 13,209.76, 19,802.88 and 5,007.52

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Solution

The fourth proportional to 13,209.76, 19,802.88 and 5,007.52 is: 7,506.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,209.76 : 19,802.88 = 5,007.52 : x
  2. Step 2: Convert to fraction form
    13,209.76/19,802.88 = 5,007.52/x
  3. Step 3: Cross multiply
    13,209.76x = 19,802.88 × 5,007.52
  4. Step 4: Simplify right side
    13,209.76x = 99,163,317.66
  5. Step 5: Solve for x
    x = 99,163,317.66/13,209.76
  6. Step 6: Final answer
    x = 7,506.82

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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.