Home / 13,781.03-20,655.14-9,598.40

Finding the Fourth Proportional to 13,781.03, 20,655.14 and 9,598.40

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Solution

The fourth proportional to 13,781.03, 20,655.14 and 9,598.40 is: 14,386.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,781.03 : 20,655.14 = 9,598.40 : x
  2. Step 2: Convert to fraction form
    13,781.03/20,655.14 = 9,598.40/x
  3. Step 3: Cross multiply
    13,781.03x = 20,655.14 × 9,598.40
  4. Step 4: Simplify right side
    13,781.03x = 198,256,144.51
  5. Step 5: Solve for x
    x = 198,256,144.51/13,781.03
  6. Step 6: Final answer
    x = 14,386.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.