Home / 13,537.90-20,307.45-4,772.89

Finding the Fourth Proportional to 13,537.90, 20,307.45 and 4,772.89

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Solution

The fourth proportional to 13,537.90, 20,307.45 and 4,772.89 is: 7,159.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,537.90 : 20,307.45 = 4,772.89 : x
  2. Step 2: Convert to fraction form
    13,537.90/20,307.45 = 4,772.89/x
  3. Step 3: Cross multiply
    13,537.90x = 20,307.45 × 4,772.89
  4. Step 4: Simplify right side
    13,537.90x = 96,925,225.03
  5. Step 5: Solve for x
    x = 96,925,225.03/13,537.90
  6. Step 6: Final answer
    x = 7,159.55

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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.