Home / 14,271.47-21,420.18-7,613.61

Finding the Fourth Proportional to 14,271.47, 21,420.18 and 7,613.61

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Solution

The fourth proportional to 14,271.47, 21,420.18 and 7,613.61 is: 11,427.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,271.47 : 21,420.18 = 7,613.61 : x
  2. Step 2: Convert to fraction form
    14,271.47/21,420.18 = 7,613.61/x
  3. Step 3: Cross multiply
    14,271.47x = 21,420.18 × 7,613.61
  4. Step 4: Simplify right side
    14,271.47x = 163,084,878.57
  5. Step 5: Solve for x
    x = 163,084,878.57/14,271.47
  6. Step 6: Final answer
    x = 11,427.34

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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.