Home / 18,315.81-25,266.68-12,337.10

Finding the Fourth Proportional to 18,315.81, 25,266.68 and 12,337.10

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Solution

The fourth proportional to 18,315.81, 25,266.68 and 12,337.10 is: 17,019.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,315.81 : 25,266.68 = 12,337.10 : x
  2. Step 2: Convert to fraction form
    18,315.81/25,266.68 = 12,337.10/x
  3. Step 3: Cross multiply
    18,315.81x = 25,266.68 × 12,337.10
  4. Step 4: Simplify right side
    18,315.81x = 311,717,369.81
  5. Step 5: Solve for x
    x = 311,717,369.81/18,315.81
  6. Step 6: Final answer
    x = 17,019.03

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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.