Home / 15,412.76-21,274.88-9,041.37

Finding the Fourth Proportional to 15,412.76, 21,274.88 and 9,041.37

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Solution

The fourth proportional to 15,412.76, 21,274.88 and 9,041.37 is: 12,480.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,412.76 : 21,274.88 = 9,041.37 : x
  2. Step 2: Convert to fraction form
    15,412.76/21,274.88 = 9,041.37/x
  3. Step 3: Cross multiply
    15,412.76x = 21,274.88 × 9,041.37
  4. Step 4: Simplify right side
    15,412.76x = 192,354,061.79
  5. Step 5: Solve for x
    x = 192,354,061.79/15,412.76
  6. Step 6: Final answer
    x = 12,480.18

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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.