Home / 15,743.16-21,718.60-9,762.84

Finding the Fourth Proportional to 15,743.16, 21,718.60 and 9,762.84

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Solution

The fourth proportional to 15,743.16, 21,718.60 and 9,762.84 is: 13,468.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,743.16 : 21,718.60 = 9,762.84 : x
  2. Step 2: Convert to fraction form
    15,743.16/21,718.60 = 9,762.84/x
  3. Step 3: Cross multiply
    15,743.16x = 21,718.60 × 9,762.84
  4. Step 4: Simplify right side
    15,743.16x = 212,035,216.82
  5. Step 5: Solve for x
    x = 212,035,216.82/15,743.16
  6. Step 6: Final answer
    x = 13,468.40

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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.