Home / 12,521.93-17,280.27-7,806.23

Finding the Fourth Proportional to 12,521.93, 17,280.27 and 7,806.23

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Solution

The fourth proportional to 12,521.93, 17,280.27 and 7,806.23 is: 10,772.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,521.93 : 17,280.27 = 7,806.23 : x
  2. Step 2: Convert to fraction form
    12,521.93/17,280.27 = 7,806.23/x
  3. Step 3: Cross multiply
    12,521.93x = 17,280.27 × 7,806.23
  4. Step 4: Simplify right side
    12,521.93x = 134,893,762.08
  5. Step 5: Solve for x
    x = 134,893,762.08/12,521.93
  6. Step 6: Final answer
    x = 10,772.60

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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.