Home / 18,423.17-25,423.99-10,869.51

Finding the Fourth Proportional to 18,423.17, 25,423.99 and 10,869.51

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Solution

The fourth proportional to 18,423.17, 25,423.99 and 10,869.51 is: 14,999.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,423.17 : 25,423.99 = 10,869.51 : x
  2. Step 2: Convert to fraction form
    18,423.17/25,423.99 = 10,869.51/x
  3. Step 3: Cross multiply
    18,423.17x = 25,423.99 × 10,869.51
  4. Step 4: Simplify right side
    18,423.17x = 276,346,381.71
  5. Step 5: Solve for x
    x = 276,346,381.71/18,423.17
  6. Step 6: Final answer
    x = 14,999.94

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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.