Home / 12,569.37-18,866.35-12,510.89

Finding the Fourth Proportional to 12,569.37, 18,866.35 and 12,510.89

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Solution

The fourth proportional to 12,569.37, 18,866.35 and 12,510.89 is: 18,778.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,569.37 : 18,866.35 = 12,510.89 : x
  2. Step 2: Convert to fraction form
    12,569.37/18,866.35 = 12,510.89/x
  3. Step 3: Cross multiply
    12,569.37x = 18,866.35 × 12,510.89
  4. Step 4: Simplify right side
    12,569.37x = 236,034,829.55
  5. Step 5: Solve for x
    x = 236,034,829.55/12,569.37
  6. Step 6: Final answer
    x = 18,778.57

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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.