Home / 13,567.80-18,721.40-7,599.72

Finding the Fourth Proportional to 13,567.80, 18,721.40 and 7,599.72

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Solution

The fourth proportional to 13,567.80, 18,721.40 and 7,599.72 is: 10,486.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,567.80 : 18,721.40 = 7,599.72 : x
  2. Step 2: Convert to fraction form
    13,567.80/18,721.40 = 7,599.72/x
  3. Step 3: Cross multiply
    13,567.80x = 18,721.40 × 7,599.72
  4. Step 4: Simplify right side
    13,567.80x = 142,277,398.01
  5. Step 5: Solve for x
    x = 142,277,398.01/13,567.80
  6. Step 6: Final answer
    x = 10,486.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.