Home / 18,547.23-25,581.22-12,881.99

Finding the Fourth Proportional to 18,547.23, 25,581.22 and 12,881.99

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Solution

The fourth proportional to 18,547.23, 25,581.22 and 12,881.99 is: 17,767.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,547.23 : 25,581.22 = 12,881.99 : x
  2. Step 2: Convert to fraction form
    18,547.23/25,581.22 = 12,881.99/x
  3. Step 3: Cross multiply
    18,547.23x = 25,581.22 × 12,881.99
  4. Step 4: Simplify right side
    18,547.23x = 329,537,020.23
  5. Step 5: Solve for x
    x = 329,537,020.23/18,547.23
  6. Step 6: Final answer
    x = 17,767.45

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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.