Home / 15,288.24-21,088.80-9,613.98

Finding the Fourth Proportional to 15,288.24, 21,088.80 and 9,613.98

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Solution

The fourth proportional to 15,288.24, 21,088.80 and 9,613.98 is: 13,261.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,288.24 : 21,088.80 = 9,613.98 : x
  2. Step 2: Convert to fraction form
    15,288.24/21,088.80 = 9,613.98/x
  3. Step 3: Cross multiply
    15,288.24x = 21,088.80 × 9,613.98
  4. Step 4: Simplify right side
    15,288.24x = 202,747,301.42
  5. Step 5: Solve for x
    x = 202,747,301.42/15,288.24
  6. Step 6: Final answer
    x = 13,261.65

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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.