Home / 15,637.49-21,582.26-8,923.40

Finding the Fourth Proportional to 15,637.49, 21,582.26 and 8,923.40

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Solution

The fourth proportional to 15,637.49, 21,582.26 and 8,923.40 is: 12,315.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,637.49 : 21,582.26 = 8,923.40 : x
  2. Step 2: Convert to fraction form
    15,637.49/21,582.26 = 8,923.40/x
  3. Step 3: Cross multiply
    15,637.49x = 21,582.26 × 8,923.40
  4. Step 4: Simplify right side
    15,637.49x = 192,587,094.27
  5. Step 5: Solve for x
    x = 192,587,094.27/15,637.49
  6. Step 6: Final answer
    x = 12,315.73

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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.