Home / 18,398.02-25,389.82-13,030.06

Finding the Fourth Proportional to 18,398.02, 25,389.82 and 13,030.06

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Solution

The fourth proportional to 18,398.02, 25,389.82 and 13,030.06 is: 17,981.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,398.02 : 25,389.82 = 13,030.06 : x
  2. Step 2: Convert to fraction form
    18,398.02/25,389.82 = 13,030.06/x
  3. Step 3: Cross multiply
    18,398.02x = 25,389.82 × 13,030.06
  4. Step 4: Simplify right side
    18,398.02x = 330,830,877.99
  5. Step 5: Solve for x
    x = 330,830,877.99/18,398.02
  6. Step 6: Final answer
    x = 17,981.87

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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.