Home / 12,038.79-16,607.93-7,791.23

Finding the Fourth Proportional to 12,038.79, 16,607.93 and 7,791.23

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Solution

The fourth proportional to 12,038.79, 16,607.93 and 7,791.23 is: 10,748.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,038.79 : 16,607.93 = 7,791.23 : x
  2. Step 2: Convert to fraction form
    12,038.79/16,607.93 = 7,791.23/x
  3. Step 3: Cross multiply
    12,038.79x = 16,607.93 × 7,791.23
  4. Step 4: Simplify right side
    12,038.79x = 129,396,080.46
  5. Step 5: Solve for x
    x = 129,396,080.46/12,038.79
  6. Step 6: Final answer
    x = 10,748.26

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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.